EXAS AGRICULTURAL EXPERIMENT STATIONS

CIiLLETIN N0. 147 APRIL, 1912

Division of Chemistry

1
PDigestion Experiments With

i

 Texas Hays and F adders

BY
G. S. FRAPS, Chemist

 

POSTOFFICE
College Station, Texas

AUSTIN PRINTING COMPANY
AUSTIN. TEXAS
I912

480-41 2-1 0m-

TEXAS AGRICULTURAL EXPERIMENT STATIONS.
GOVERNING BOARD.
(Board of Directors A. & M. College.)

WALTON PETEET, President . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Fort Wort‘:
JoHN I. GUION, Vice-President . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..Ba1linge »

    
    

CHAS. DAVIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..Steele’s Stor

L. J. HART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..San Antoni

J. ALLEN KYLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . “Houston,

R. L. BENNETT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..Paris

D. W. KEMPNER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . “Galveston

En. R. KoNE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..Austin‘
PRESIDENT 0F COLLEGE. p

R. T. MILNEB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..Col1ege Station l
STATION STAFF. - ' e5

B. YUUNGBLOOD, M S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Director§

M. FRANCIS, D. V. S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . .Veterinarian 

G. S. FBAPS, P11. D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Chemist;

H. NEss, M. S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Horticu1turist i‘

J. C. BURNs, B. S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Anima1 Husbandry

WILMON NEWELL, M. S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Entomologist

A. B. CONNER, B. S . . . . . . . .’ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..Agronomist

F. H. BoneETT, PH. D . . . . . . . . . . . . . . . . . . . .P1ant Pathologist and Physiologist

W. L. BoYET . . . . . . . . . . . . . . . . . . . . . . .‘ . . . . . . . . . . . . . . . . . . . .State Feed Inspector

HARPER DEEN, B. S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Assistant Entomologist

J. B. RATHER, M. S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Assistant Chemist

J. B. KELLY, A. B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..Assistant Chemist

L. C. LUoLUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Assistant Chemist

F. B. PADDOCK, B. S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..Assistant Entomologist

H. H. JoRsoN, B. S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Assistant Agronomist‘

CHAS. A. FELKER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..Chief Clerk

A. S. WARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Secretary to Director

J. M. SCHAEDEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stenographer

R. L. SPILLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..Mai1ing Clerk

STATE AGRICULTURAL EXPERIMENT STATIONS.
GOVERNING BOARD". ’

Hrs EXcELLENcY GOVERNOR O. B. COLQUITT... . . . . . . . . . . . . . . . . . . . . . . ..Austin
LIEUTENANT-GOVERNOR A. B. DAVIDSON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..Cuero
COMMISSIONER‘ OF AGRICULTURE HoN. En. R. KoNE . . . . . . . . . . . . . . . . . . ..Austin

DIRECTOR OF STATIONS.
B. YOUNGBLOOD, M. S . . . . . . . . . ..- . . . . . . . . . . . . . . . . . . . . . . . . . . . ..Col1ege Station

SUPERINTENDENTS OF SUB-STATIONS.

E. E. BINEQRD, Beeville Sub-Station . . . . . . . . . . . . . . . . . . . ..Beeville, Bee County

W. S. HOTCHKISS, Troup Sub-Station . . . . . . . . . . . . . . . . ..Troup, Smith County

E. M. "JorrNsToN, Cooperative Rice Station . . . . . . . .Beaumont, Jefferson County

I. S. YORK, Spur Sub-Station . . . . . .  . . . . . . . . . . . . . . . . ..Spur, Dickens County

T. W. BUELL, Denton Sub-Station . . . . . . . . . . . . . . . . . . ..Denton, Denton County

A. K. SHoRT, Temple Sub-Station . . . . . . . . . . . . . . . . . . . . . ..Temp1e, Bell County

A. L. PASCHAL, Lubbock Sub-Station . . . . . . . . . . . . ..Lubbock, Lubbock County

P. D. PERKINS, Angleton Sub-Station . . . . . . . . . . . ..Angleton, Brazoria County

H. C. STEWART, Pecos Sub-Station . . . . . . . . . . . . . . . . . . . . .Pecos, Reeves County

G. T. McNEss, Nacogdoches Sub-Station. . . .Nacogdoches, Nacogdoches County
H. C‘. HOLMES, Feeding and Breeding Station. .College Station, Brazos County

N0TE.—-The main station is located on the grounds of the Agricultural and
Mechanical College, in Brazos County. The postoflice address is College
Station; Texas. Reports and bulletins are sent upon application to the
Director. A postal card will bring these publications.

TABLE OF CONTENTS.

Page,
Definition of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5

Composition and Description of the Feeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Digestibility . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . _.~ . . . . . . . . . . . . . . 9~

Coeificient of Digestibility of the Feeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..10\

Digestible Nutrients in the Feeds . . . . . . . . . . . . . . . . . . . . . . . .- . . . . . . . . . . . . . . ..11

Productive Values of Feeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..11

Method of Conducting the Digestion Experiments . . . . . . . . . . . . . . . . . . . . . . .. 13

Summary and Conclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..28,

[Blank Page in Original Bulletin]

DIGESTION EXPERIMENTS WITH TEXAS HAYS AND
FODDERS.

BY
G. S. FRnPS. Chemist.

The work here described is preliminary to the more thorough and ,

i detailed investigations under the Adams Fund, which will be reported
ilater. The results of the digestion tests of the ordinary fodder
§ groups is reported in this separate bulletin, as this work has a more
Y-general and popular interest than the detailed work.

DEFINITION OF TERMS.

The ordinary analysis of a feeding stuff gives its content of water,
iash, protein, ether extract, crude fiber, and nitrogen-free extract,
i-expressed in percentages. i
i Protein, being the constituent of food which forms flesh, muscle,
§hair, ligaments, and other portions of the animal body, is of great
{importance It replaces the wear and tear of the animal tissue and
lffurnishes material for additional flesh. Besides furnishing material
ifor tissue, protein may be burned in the body to produce heat, or it
glmay serve as a source of fat in case of a deficiency in carbohydrates
éand fat accompanied by excess of protein. It is, however, a costly
isource of heat and fat. Protein is the most expensive portion of a
gfood, and feeds rich in protein usually sell for a higher price than
feeds low in protein, though the difference is not as great in Texas
as in the Northern States. With a given feed, the more protein it
lcontains, the better its quality, compared withother feeds of the

E
i-same kind.
i Ether Extract is composed mainly of fats and oils in the case of
‘ioncentrated feeding stuffs, but with fodders and hays it is often
Fwmposed to a considerable extent of waxes, coloring matter, and
gather substances. Fat is used in the animal body as a source of body
at and to furnish heat and energy. The animal requires heat to'
Eeep its body warm and energy to run the animal mechanism or to do
utside work. The beating of the heart, chewing, movements of the
testines, and the involuntary muscular movements require ‘energy
p, hich is furnished by the oxidation of fats, carbohydrates or protein.
vne pound of fat is equal to» 2.25 pounds of carbohydrates. Fat
_ nks next to protein in its value in a feeding stuff. The more pro-
in and fat a given feed contains, the better its quality compared
._ 'th other feeds of the same kind.
Crude fiber is the portion of the plant which resists the intense
tion of acids and alkalies. It consists mostly of the cell walls and
oody fiber of the plant, and is the most indigestible part of the feed
uff. By means of fermentation in the intestines, crude fiber is
gested to some extent in animals which chew the cud. The opera-

   
  
   

i 6 TEXAS AGRICULTURAL EXPERIMENT STATIONS.

considerable value to the animal.

 
 
 
 
  
 
  
 
  
  
   
 
  
  
 
  
 
  
  
  
 
   
  
  
   
  
 
 
 
  
  
  
  
  
  
 
  
 
  

tion, however, consumes so much energy that a large portion 
v_alue of the crude fiber is taken up by the process of digestion. 
and fodders and other roughage generally contain much crude _
but concentrated feeding stuffs comparatively small quantities a
Crude fiber is the woody and less digestible portion of a feeding ;
The more crude fiber a feed contains, the poorer its quality com,’
with other feeds of the same kind. Crude fiber contains some y ,1
lose, which is a carbohydrate. , ' l j

Nitrogen-free extract is composed of starch, sugar, dextrin,
other substances of similar nature. These substances are mostly
bohydrates; that is, they contain carbon and hydrogen in propo 
to form water. Crude fiber is also composed largely of carbohydr;
The nitrogen-free extract of 'most concentrated feeding stuffs, 
as corn chops, wheat bran, cottonseed meal, Kaffir corn, is com
largely of sugars and starches which are readily digested and I‘.

The nitrogen-free extract of wheat skins, corn bran, cobs, rice h, a
hays and straws, and similar feeds, is composed mostly of other j
stances than sugar and starch, and has a lower value to ani
The nitrogen-free extract of these two kinds of feeds, therefore, ‘
not be compared directly. 

In general, we may say that the more protein, fat and nitro,
free extract, and the less crude fiber and ash a given feed conta'
compared with other feeds of the same kind, the better the qu i»
of the feeding stuff, and the reverse is also true. l_

The same statement also holds in comparing feeding stuffs of 
erent kinds, but not altogether; since, in comparing feeds of differ
kinds we must alsoconsider their digestibility and the produce
value of the digested material. ,

Ash is the residue left when the plant is burned. It repres
mostly the mineral portion of the plant and the portion which “a
from the soil, although a part of the ingredients Withdrawn from g
soil are volatilized during combustion." Nitrogen particularly 
driven out completely. Ash is valuable to the animal, inasmuch as’
furnishes the materialfor bones, and some constituents of it, pa 
ularly, phosphoric acid and sulphur, are essential constituents of t
‘animal cell. Ash is necessarily present in feeding stufis. An exc
sive amount indicates contamination with dirt, sand, or other nil?
eral matter. Too little ash in the ration fed may give rise to di  _
ders, especially in young animals. _ 

Water (moisture) is always contained in feeding stuffs, but 
it is furnished for the most part in liquid form, it can not be consi i?
ered as having any special nutritive value. The more water a fee
ing stuff contains, the less of the other nutrients it contains, and t i
more liable it _is- to be injured by heating, mold, etc. The water col
tent of feeds varies, being larger in fresh grain. .

COMPOSITION AND DESCRIPTION OF FEEDS.

The average composition of the feeds, and composition of the fee 
used in the experiments described in this bulletin, are given in Tabl 

   
   

DIGESTION EXPERIMENTS, WITH TExAs HAYs AND FODDERS. 7

; 1, The average is drawn from all available analyses, as detailed in
Table 9. ,

 Alfalfa. Alfalfa hay used in Digestion Experiment N0. 3, ap-
apeared to be first growth alfalfa, was reasonably free from weeds
‘and foreign matter, and had a considerable amount of alfalfa leaves.
§It was somewhat above the average in protein.

Bermuda hay. The average protein given for Bermuda is proba-
=bly higher than that actually on the market. It is not believed by us
gthat the average composition in the table represents the average com-

P
l,

position of the hay on the market. Bermuda hay used in digestion
Ejgexperiment No. 12, was free from dirt and contained only a. small
gamount of weeds and foreign grasses. It was eaten readily and com-
Epletely by the sheep, It was much below the average composition in
iprotein and fat, and higher in crude fiber.

iTABLE 1—AVER.AGE COMPOSITION OF FEEDING STUFFS AND COMPOSITION OF
THOSE USED IN THE EXPERIMENTS.

Nitro-
Pro- Ether Crude gen
tein. ex- fiber. free-ex- Water. Ash.
tract. tract.
Alfalfa hay, average ______ --. ................... -_ 14.42.’ 1.97 29.78 35.81 9.61 8.41
Alfalfa hay used in Experiment No. s _________ _- 16.17 1.41 28.24 34.96 10.99 8.14
Bermuda hay, average _________________________ _- 10.88 2.14 22.96 46.37 10.05 7.60
Bermuda hay used in Experiment N0. 12 _____ __ 6.43 1.60 2762i 46.70 9.74 7.88
Burr clover used in Experiment No. 6 ________ -- 23.43 2.12 20.81 31.83 9.73 12.10
Buffalo grass, average ________________________ -_ 7.85 1.83 26.13 45.291 7.57 11.34
Bufialo grass used in Experiment No. 9 ______ -_ 7.05 1.20 27.64 45.43 7.30 11.55
Corn shucks used in Experiment No. 17------" 3.20 0.68 30.32 54.60 7.75 3.47
Oowpea hay, average __________________________ __ 14.56 2.72 23.31 41.53 10.04 7.82
Cowpea hay used in Experiment No. 1 ________ __ 14.66 3.02 26.18 34.37 12.73 9.05
Guam grass used in Experiment No. 16 ........ __ 8.43 1.73 2600i 49.40 7.66 6.79
Johnson grass hay, average __________________ __ 7.22‘ 1.90 30.00’ 44.06 9.70 7.12
Johnson grass hay used in Experiment No. 4- 7.44 1.68 .40 42.44 8.69 12.36
Johnson grass hay used in Experiment No. 10.- 692i 1.40 30.76 44.73 8.06 8.13
Kafir fodder, average .......................... _- 13.10 4.15 22.37 40.18 8.37 11.83
Kafir fodder used in Experiment No. 15------“ 9.90 2.13 23.80 44.33 8.57 11.25
Millet, average ---_ 7.75; 2.25 28.72 43.19 10.21 7.88
llillet used in Experiment No. 11 ______________ _- 4.221 1.62 27.91 48.37 9.42 8.97
Dat hay, average -_-_ 7.72! 2.89 27.80 42.16 13.44 5.99
Dat hay, used in Experiment No. 5 ............ __ 8.04’ 2.41 27.87 44.22 8.36 9.02
Peanut hay, average ........................... _- 11.99 7.98 24.61 89.38 8.82 7.22
Peanut hay used in Experiment No. 13 ________ -- 13.56 8.56 22.82 39.02 8.60 7.44
Para grass used in Experiment No. 14 ________ _- 3.34 0.91 33.80 46.71 8.36 7.10
lice straw, average ____________________________ __ 4.11 1.54 31.56 41.37 6.57 14.85
lice straw, Japan, Experiment No. 7 __________ __ 3.92 1.24 83.26 37.82 6.68 17.10
lice straw, Honduras, Experiment No. 18 ____ -- 3.98 1.15 30.65 40.62 7.46 16.16
lorghum hay, average ........................ -_ 9.10 8.42 24 40 45.73 8.55 8.80
lorghum hay used in Experiment No. 2 ______ __ 5.58 1.66 28.07 47.24 10.56 6.91
Vetch hay, average ____________________________ -- 17.72 2.30 23.33 35.94 13.18 7.53
Fetch hay used in Experiment No. 8 ......... ._-, 15.00 1.58 27.28 37.53 6.76 11.87

Burr clover hay used in digestion experiment No. 6 was cut on
he College campus and dried in a large air drying apparatus in the
aboratory, before chopping. The clover was in bloom with most of
he seed formed. It was free from dirt and was readily and com-
detely eaten by the sheep. Samples of burr cloverwere also collected
»y Mr. J. BL Rather, assistant chemist, at various stages of growth.
iesults of these analyses are in Table 2. The percentage of protein,
at, water and ash decrease with the age of the clover. The crude
ber increases.

 
  
 
 
   
    
  
 
  
  
 
  
  
  
  
  
 
  
  
  
 
 
  
 
 
 
 
  
  
  
  
  
   
  
 
  
  

8 'l‘1~:x.\s AGRICULTURAL EXPERIMENT STATIONS

TABLE 2—BURR CLOVER COLLECTED IN DIFFERENT STAGES OF GROW’
  d

   

 

‘ t j Nitro- " i W,
Labora- Date Pro- l Orude ? gen p i
tory N0. col- tcin.§ Fat fiber. lfreeex- Water.‘ Ash. t!
lected. ‘ tract. l a ‘
3330 Just in bloom ________ __ Mar. 23l 27.10 4.18 14.12‘ 4049i 3.02; 11.09
3511 Full bloom, part of April 25 24.00, 3.23 1605i 38.19 7.43 10.20
seeds formed. ' a
3518 Most of seeds iormed__ April 14’ 20.75l 2.97 21.85 41.13 2.72 10.58
3586 Still in bloom ________ _- April 21 21.06 3.92 21.25 38.47 5.96 9.40 ,
3601 Part of leaves dying, April 28 16.43 2.48 25.597 40.70 5.95 8.85 .
still blooms. l '
3608 All seeds formed, some May 7 15.70 2.58 30.581 36.76 6.90
leaves dry and drop- 1 l
ping off. 3 _
3628 Most of leaves andiMay 20 11.01 1.84 38.25‘ 33.46 7.05 8.39
burrs have dropped ofil 3

   

   

Bnfialo Grass hay used in ‘digestion experiment N0. 9. This h
about the average in quality. Where buffalo grass is grown the =;
ers usually allow it to come up in the corn fields after the cro ,
laid by, and cut it in the fall. This hay was sent us by A’. T. P
of the Beeville Substation, Beeville, Texas. It was eaten rea
after the sheep became accustomed t0 it. , 

Baled Corn shacks used in digestion experiment N0. 17. The shu 
comprised the husk proper, and also the “butt,” or the portion
nected with the stalk. There vias no foreign material present 
the exception of a few cobs and “nubbins.” One bale was a t
musty, The sheep ate the feed quite well. It was rather surprh
to find such a small number of analyses of this product in the lite
ture. 11
Cowpea hay used in ‘digestion experiment No. 1, consisted of i
vines and leaves, no peas being found. In weighing out the ratio‘
portions were taken from different parts of the piles to make themf.
uniform as possible. The hay was eaten readily by the animals at 
times. It was obtained from the farm department of this Colle
The hay was about average in protein, but somewhat higher in cru,
fiber and much lower in nitrogen-free extract. ' i‘

Gaalm Grass, used in digestion experiment No, 16, was furnish
by the Long Lake Plantation, Long Lake, Texas. The hay was go‘
quality and free from dirt and weeds. The bulk of this grass co‘
sists of Tripsascum Floridanum (Porter) and grows in moist pla ‘
in Florida and Texas. The sheep ate the feed with relish.

Johnson Grass hay, used in digestion experiment No. 4. Two bal '
of this hay were obtained from Bryan, Texas. One bale appeared 
be reasonably good quality, a small amount of weeds and dirt bei
present. a The other bale contained a large amount of weeds, trash 
dirt and was evidently made from scraps of hay left around the  a
after the baling had been finished. A large amount of the dirt w_
removed in the chopping and mixing of the sample. The bales 00nd;
tained no large stalks of grass and it was evidently a young cut hay=
The sheep "did not eat this feed readily.  '

Johnson Grass hay, used in digestion experiment No. 10. The gra. 
was coarse stemmed, but cleaner and apparently better quality tha
that used in digestion experiment No. 4, The sheep ate the f;
readily and completely. The first lot of Johnson grass hay had 

DIGESTION EXPERIMENTS WITH TEXAS HAYS Ami FonDERs 9

better chemical composition than the second, though both were near
the average. _ A

Baled Kafi/ir Fodder, used in digestion experiment No. 15, contained
no head, was free from grasses, but Was "damp in the middle of the
bales and contained considerable dirt. Two sheep ate the feed com-
pletely. Sheep No. 6 left a considerable amount of stalk, but the di-
gestion of this animal was deranged more or less throughout the
whole period. The average composition of Kaffir fodder shown in
the table is, we believe, superior to that sold on the market or used
for feed. The composition of the sample subjected to analysis is
probably more nearly that of the commercial product than the av-
erage 1s.

Balecl lllillet, used in digestion experiment No. 11, was good qual-
ity, with heads and was nearly free from weeds and other foreign
substances. The sheep ate this feed readily. It is much below the
average composition in protein.

Oat Hat , used in digestion experiment No. 5, came from the Col-
lege farm and was very near the average composition.

‘ Peanut Hay, used in digestion experiment No. 13. Nearly all the
vines had peanuts on them. A small amount of dirt and weeds was
present. The sheep ate the hayeagerly at all times. The composition
of the hay was somewhat better than the average.

Para Grass Hay, used in digestion experiment No. 14, was free
from weeds but contained a little dirt and was musty. The sheep
did not eat the feed well and showed a tendency to select the leaves
in preference to the stalks.

Japan Rice Strazu, used in digestion experiment No. 7, from estate
of A. H. Pierce, Pierce, Texas, was free from dirt and weeds, but
contained a small amount of rice heads. A preliminary ration of
rice straw and cottonseed meal was fed to accustom the sheep to the
feed. They ate it, however, with much dislike and a large amount
was left at the end of the experiment.

'Baled Honduras Iiice Straw, used in digestion experiment No. 18,
was excellent quality and free from weeds and grasses. Sheep No.
1 ate his ration completely but more readily during the preliminary
period, Sheep Nos. 4 and 5 did not eat as well as No. 1 and left con-

' siderable residues.

Sorghum Hay, used in digestion experiment No. 2, was not fully
matured; it was partly headed, but the heads were not full. It was
dry and nearly free from grass and weeds. The hay was eaten read-
ily at all times. It was considerably below the average in protein
and fat and higher in crude fiber.

Vetch Hay, used in digestion experiment No. 8, was a bright and
clean sample and was eaten with much relish. No residue was left
after the preliminary and collection periods. It is somewhat below
the average in protein and fat and higher in crude fiber.

DIGESTIBILITY.

By the digestibility of a feed, we mean that proportion of the diifer-
ent nutrients which “disappears in the passage of the food throughthe

animal. Since we know that a portion which disappears is '

‘that 59.7 per cent of all the protein in the corn disappears in".

- Sorghum hay, Experiment N0. 2 ........................ --

  
  
  
  
  
  
 
  
  
 
  
 
  
  
  
 
 
  
   
 
 
 
 
  
      

10 TEXAS AGRICULTURAL EXPERIMENT STATIONS

changed by fermentation into the gases, carbon dioxide and '
gas, we know that all the so-called digested nutrients do not {f
into the system of the animal or become valuable to it. Furth
now know that the digested nutrients of one feed do not -w5
have the same value to the animal, pound for pound, as thedi
nutrients-of another feed. For example, a pound of digested u,
gen-free extract from corn chops has a greater value to theta,
than ‘a pound of digested nitrogen-free extract from alfalfa
This has been definitely shown by the Work of Kellner. We will}
cuss this matter a little later in connection with the productive -
of feeds. _
The digestibility of a feed, and its content of digestible nut p
is, nevertheless, of great significance in judging the nutritive "
of a feed_ The feeding value can be calculated, more or less M
rately, from the digestion value. - 
By coefficient of digestibility we mean the percentage 0r the 
portion which is digested. For example, suppose the coefficien
digestibility of protein in green corn is given at 59.7. This ex],

‘x

passage of the feeding stuff through the animal.

COEFFICIENT OF DIGESTIBILITY OF THE FEEDS. 

Theroefficient of digestibility of the feeds tested, and the ave {i
coefficients of digestibility of these feeds, are given in Table 3. t
averages are taken from the experiments detailed in Table l0. ,_
Texas experiments are included in the averages given. The pro i,
of burr clover, alfalfa hay, cowpea hay, peanut hay, and vetch ha
has the highest coefficient of digestibility. Corn shucks, para Y“
and rice straw rank lowest. Ether extract of alfalfa, burr clo
and ricestraw were little digested in our experiments. 

TABLE 3—AVERAGE OOEFFTCIENT OF DTGESTIBILITY OE FEEDING STUFFS AND
THOSE FOUND IN THE EXPERIMENTS.

Nitro-
- Pro- Ether Crude gen
Description . tein . ex- fiber . free-ex-
tract. tract.

m
.°
m

Alfalfa hay, average
Alfalfa hay, Experiment No. 3 _________________________ __
Bermuda hay, average- i

"Bermuda hay, Experiment N0. 12 ______________________ __
Burr clover, Experiment N0. 6 __________________________ _-
Bufialo grass, average _
Buffalo grass, Experiment No. 9__‘ ______________________ __
Corn shucks, Experiment No. 17 ________________________ _-
Oowpea hay, average
Oowpea hay, Experiment No. 1 ........................ -_
Guam grass, Experiment N0. 16 _______________________ _-
Johnson grass hay, average _______ _-_ ___________________ __
Johnson grass hay, Experiment No. 4 ________________ __
Johnson grass hay, Experiment No. 1O ............... _-
Kafir fodder, Experiment No. 15 ...................... -_
Millet, average -____
Millet, Experiment No. 11
Oat hay, average
Oat hay, Experiment N0. 5
Peanut hay, average '

Peanut hay, Experiment No. 13 ........................ --
Para grass, Experiment No. 14 _________________________ -_
Rice straw, Experiment No. 7 (Japan) ................ -_
Rice straw, Experiment N0. 18 (Honduras) ............. --
Sorghum hay, average

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Vetch hay, average
Vetch hay, Experiment No. 8 ........................ --

DIGESTION EXPERIMENTS WITH TEXAS HAYS AND Foonnas. 11

DIGESTIBLE NUTRIENTS IN THE FEEDS.

The average quantity of digestible nutrients in the various feeds,
and the quantity found present in the feeds used in the experiment
are given in Table 4.. This table gives the best means of comparing
the feeds yet given in this bulletin, “but the method based on the
actual ‘productive values of the feeds is still better. _

Burr clover, vetch hay, alfalfa and cowpea hay rank highest in
digestible protein, Peanut hay is highest in "digestible fat. Corn
shucks and rice straw are lowest in digestible protein.

TABLE 4—DIGES'TIBLE CONSTITUENTS OF FEEDS STUDIED, AND AVERAGE DIGEST-
IBLE CONSTITUENTS.

 
 
 

Nitro-
Pro- Ether Crude gen Nutri-
Description. tein. ex- fiber. free-ex- Ash. tivo
tract. tract. ratio
Alfalfa hay, average ......................... _-._ 10.9!‘ 0.8l 13.8‘ 24.5 4.2‘ 3.7
Alfalfa hay, Experiment N0. 3 ________________ _- 11.9‘ 0.1i 12.9 22.7 4.7’ 8,0
Bermuda hay, average _________________________ _- 6.3 0.9 12.6 23.9 2.61 6.1
Bermuda hay, Experiment No. 12 ............. -_ 3.1‘; 0.sl. 14.5 23.4 2.2 12.0
Burr clover, Experiment No. 6 _________________ _- 18.91 0.0l 13.4 24.2 7.6 2.0
Buffalo grass, average ........................ -_ 4.2‘, 0.9 16.1 27.5 1.7 10.8
Buffalo grass, Experiment No. 9 ______________ __ 3.8 0.4 16.1 26.3 2.8 11.4
Corn shucks, Experiment No. 17 _______________ __ 0.4L 0.3 21.0 ‘33.1 0.7 137.0
Cowpea hay, average __________________________ -- 10.0 1.1, 10.9 28.2 23.7 4.2
Cowpea hay, Experiment No. 1 ________________ __ 10.6 0.9 13.5 22.4 1.0 3.0
Guam grass, Expirinient No. 16 ______________ __ 4.3 LOi 14.8 26.6 1.91 10.1
Johnson grass hay, average ___________________ _- 3.2 0.8 19.9 25.0 1.91 14.6
Johnson grass hay, Experiment No. 4 ________ __ 3.1} 0.9 18.1 22.2 1.7| 13.0
Johnson grass hay, Experiment No. 1O _______ -_ 3.6‘ 0.7 - 20.8 27.3 2.7‘ 13.8
Kafir fodder, average* _________________________ __ 8.3 2.2 15.0 27.9 5.2 5.7
Kaflr fodder, Experiment No. 15 _______________ __ 6.2: 1.1 16.0 30.8 4.91 7.9
Millet, average ................................. -- 4.0] 1.1 18.5 24.5 4.3- 11.4
Millet, Experiment Ne. 11 ...................... _- 1.2, 0.1a. 18.2 2a.? 2.81 57.01
Oat hay, average _____________________________ __ 4.2] 1.8 14.1 23.0 2.21 10.1
Oat hay, Experiment Ne. 5 ____________________ __ 4.11 1.7 18.9 29.5 2.0: 11.1
Peanut hay, average ........................... __ 8.5‘ 6.2 12.8 28.3 1.5, 11.4
Peanut hay, Experiment No. 13 _______________ -_ 101i 7.7 12.0 29.0 1.6 5.4
Para grass hay, Experiment No. 14 ___________ -_ 0.31 0.4 17.8 21.9 1.6 135.8
Rice straw, averagei ___________________________ _- 0.9} 0.31 18.7 19.1 2.0‘ 42.2;
Rice straw, Experiment No. 7 (Japan) _______ __ 0.7‘ 0.1 20.1 17.0 2.1i. 53.3
Rice straw, Experiment No. 18 (Honduras)__-_- 1.1‘ 0.5 17.8 19.2 2.41 34.6
Sorghum hay, average _________________________ -_ 3.9 2.2 15.2 28.9 3.0! 12.5
Sorghum hay, Experiment N0. 2_-_..__-_..---_-__ ,1.8i 0.9 18.8 30.7 2.3; 28.8
Vetch hay, average _____________________ _-. ...... -_ 12.01 1.3 13.2 26.1 3.3, SJ
Vetch hay, Experiment No. s .................. -- 111i 0.7 14.9 2s.o 2.1‘ 4.0

‘Ooefficients of digestibility. obtained in our experiments used in making calculations.
{Average coefficients of digestibility oi Japan and Honduras rice straw obtained in om’
experiments used in making calculations.

PRODUCTIVE VALUES OF FEEDS.

It takes a certain amount of work for an animal to chew and di-
gest its food. The amount of work varies with different feeds. The
value of the feed to the animal is decreased by the amount of energy
expended in its digestion. Coarse and bulky foods require relatively
more digestive energy than do concentrated feeds. Grinding or
chopping the feed reduces the labor of chewing and decreases the
energy expended in "digestion.

. in work or in movements of the animal body.

. determined exactly the quantity of fat and flesh laid 0n by an ani-i

. given.

 
 
     
  
    
   
   
  
  

12 TEXAS AGRICULTURAL EXPERIMENT STATIONS

A portion of the value of the feed is lost in fermentation. Mar
gas is evolved, which carries off energy. The value of the feed 
the animal is decreased by the amount of the loss. a

A portion of the value of the feed is eliminated in the undigest
residues, and as organic substances in the liquid excrement. 

When these losses are deducted, what remains of the food may j,
utilized for the purposes of the animal. It is used, first, to keep the;

animal warm and to perform functions necessary to the life of the;
animal. , 

The excess, if any, is Used in the manufacture of fat, flesh or milk,i_
It is thus seen that
only a portion of the feed is available for What may be termed pro-"i
ductive purposes. - ' - 

The productive value of feeds has been measured by Kellner. He
mal with a given ration, and then to this ration he added the feed _,
to be tested, and again determined the gain in fat and flesh_ The 
increased gain was due to the addition, and as the amount of the ~
increase was known, the effect of the addition was known exactly.
The flesh was calculated to fat. The productive value of the feed i
can thus be expressed in terms of the number of pounds of fat which 
it will produce when added to a ration already sufficient for the l
needs of the animal. By using Kellner’s results, the relative produc-
tive value of feeds can be calculated from their content of digestible
nutrients.

In judging the value of a feed we must consider not only its pro-
ductive value “fat value” but also its content of protein, or flesh
forming material.

Table 5 contains the productive values of the feeds as ascertained
in the experiment, and also the average productive values as based
on Table 4. The digestible protein and the relative value is also
l The “relative value” must be considered as only provisional,
because it is secured by combining productive value and protein, as-
suming the protein to have a value for flesh equal to its fat value, and
protein varies in value according to conditions. Under certain con-
ditions, the value of a feed would be measured by its productive value
only. The productive value is given as the number of pounds of fat
which may be produced by 100 pounds of the feed when added to
a ration already sufficient for the needs of the animal for mainte-
nance purposes.

The relative values of average Bermuda hay, burr clover, and Kaflir
fodder, are probably in excess of the average value of these hays as
sold on the market.

The value given for para grass is probably below its average value.

‘Para grass, Experiment No. 14 _______________________________ -1

' DIGESTION EXPERIMENTS WITH TEXAS HAYS AND FODDERS? I3?-

TABLE Er-DIGICSTIBLE CRUDE PROTEIN AND PRODUGTIVE VALUES OF FEEDS
STUDIED.

i Productive
Digestible value ex- Relative
crude pressed as value.
protein. fat.

 

I-l
. . .°
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Alfalfa hay, average ________________________________________ _-i
Alfalfa hay, Experiment No. 3 ______________________________ _-|
Bermuda hay, average ________________________________________ __*
Bermuda hay, Experiment No. 12 ______________________________ -_*
Burr clover, Experiment N0. 6___. __________________ --.. ..... _-'§
Buffalo grass, average _______________________________________ -_i
Buffalo grass, Experiment No. 9 ____________________________ -1
Corn shucks, Experiment N0. 17 ____________________________ --l
Oowpea hay, average _________________________________________ -_
Cowpea hay, Experiment N0. 1 ______________________________ _-
Guam grass, Experiment No. 16 _____________________________ _-
Johnson grass, average ______________________________________ __
Johnson grass, Experiment No. 4_ __________________ __
Johnson grass, Experiment No. 10 ________________ __
Iiafir fodder, average _ _ _ _ . _ _ _ _ _ _ . _ . _ _ _ _ _ _ _ _ . _ __
Kafir fodder, Experiment No. 15 ________ __
Millet, average _____________________________ _-
Millet, Experiment No. 11 __________________________ __
Oat hay, average _________________________________________ -_ __
Oat hay, Experiment No. 5 ___________________________________ _-
Peanut hay, average _________________________________________ __
Peanut hay, Experiment No. 13 _____________________________ __

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Rice straw, average ___________________________________________ _-
Rice straw, Experiment No. 7 (Japan) ______________________ __
Rice straw, Experiment No. 18 (Honduras) _________________ __
Sorgum hay, average ______________________ ___ ________________ __
Sorgum hay, Experiment No. 2 ______________________________ __i
Vetch hay, average _______________ -_, __________________________ __‘
Vetch hay, Experiment No. 8 ________________________________ __
Cottonseed meal _____________________________________________ -_
Wheat bran ___________________________________________________ __
Corn chops __________________________________________________ __i

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METHOD OF CONDUCTING THE DIGESTION EXPERIMENTS.

Preparation 0f Sample. The feed to be tested is passed through the
feed chopper after being freed from sticks and weeds, if any bei-
present. The chopper is adjusted to cut the feed in about half inch
lengths, and the feed is run through two or more times, depending
on the nature of the sample and the degree of fineness obtained.
The chopped feed is thoroughly mixed on a clean floor.

The quality of the feed, the presence of dirt and approximate‘
amount and nature of weeds and foreign grasses removed are reported.

Preliminary Feeding Period. This is to accustom the animal to
the feed and to determine how much they will eat per day. Ordi-
narily, the feed may be substituted for that which the animals are
already eating, increasing the amount substituted each meal until
the full ration is fed.

Weighing Ont Rat/ions. The sheep having been accustomed to the
feed, the weight of the ration is determined (usually 225 or 250
grams) and weighed out for the whole experiment beforehand; A
bag is counterpoised on the torsion balance and the feed weighed
into it. Each bag is counterpoised separately. After each bag has
had the ration put in, another is inverted over it and pulled down
until the fullbag is entirely within the other. The number of
rations to be weighed out depends on the number of sheep to be used,
 the feeding lasts 16 days (2 sheep, 64 rations; 3 sheep, 96rations)-..

  
 
 
   
   
    
   
 
 
  
  
  

14 TEXAS AGRICULTURAL EXPERIMENT STATIONS _ 

Four extra rations are weighed out and substituted for rations =
the first, one-half; tWo-thirds; and last part of the stock. Th
latter are to be brought to laboratory and prepared for analysis. i“

Feeding Period. The sheep are fed at 8 :15 a. m., and 3:45 p. H
daily. eWater is kept in stalls in buckets and fresh Water put a
every morning 

Before starting the feeding, all residues from previous feeds =1;
removed from the feed box, stall and vicinity. The feeding peri
is continued eight days. .On the day before ‘the collecting period =*
gins the harness is put on and adjusted so there may be no delay 
putting on the bags. On the morning the feeding period ends, th;
uneaten feed is collected and Weighed. Any feed mixed With'uri g
or Water is collected separately, dried, Weighed and discarded. T 
other residue is returned to the feed box. .

Collecting Period. The bags are put on at 8 :15 a. m., and removed?
at the same hour at the end of the period, which lasts 8 days. The;
feces are collected at 8:15 a. m., and 3:45 p. m., the sheep being fed,
immediately after. The scattered feed is collected as before. The‘.
feces are placed in fruit jars, brought to laboratory and Weighed.
They are then placed on marked pans and put in air-ovens to dry.
When the period is over, the uneaten residues are collected and
Weighed as before (feeding period). _ l,

After Treatment. The sheep are not to be fed too much grain for {p-
a feW days after the experiment, one-half pint chops per ration Will ,
do. They may be fed all the hay (prairie) they Will eat. Thefeces
are allowed to ‘dry for about a Week after the experiment ends and.
then Weighed and placed in tin buckets With tightly fitting lids.

Preparation of Samples. The individual Weights of the feces
should total to 2 or 3 grams of the Weight of the Whole amount
Weighed together. '

The dried feces should be pounded in a mortar and ground as
quickly as possible in mill. The Weights before and after prepara-
tion are to be noted. Each sample of feces is then mixed thoroughly a
on a large piece of paper and placed in dry fruit jars.

The feed samples are divided into tWo samples of two sacks each,
and registered under two numbers. They are to be chopped and run
through mill until they are the required fineness. Weights before
and after preparation are to be noted. The loss in preparation in
feed and feces should not be more than 15 grams per sample.

The presence of any large quantity of uneaten residues introduces
an uncertainty in the Work, since the amount eaten during the prelim-
inary period is not always the same as during the digestion period.
As a rule, the animal eats a little more during the digestion period,
when, a residue is left. We have divided the total residue for the
entire 16 days by "tWo, when any large quantity was left uneaten
during both periods.

Analytical Methods, Analytical methods used are those of the As-
sociation of Official Agricultural Chemists. All results reported are
averages of two or more determinations.

Drensrlon EXPERIMENTS WITH TEXAS HAYS AND Foonnas. 15

Analytical an
tin was taken p
Carlyle, N. C. Hamner, L. C. Ludlum, J. B. Kelly,

ACKNOWLEDGMENT .

d other’ Work involved in the preparation of this Bulle-
art in by Assistants J. B. Rather, S. E. Asbury, E. C.
J. B. Herr-on, M.

B. Gottlieb, and T. L. Ogier. Special mention should be made of the
services of J. B. Rather.

TABLE (‘r-COMPOSITION OF FEEDING STUFFS AND RESIDUES FROM DIGESTION

EXPERIMENTS.
Nitro-
Labora- Pro- Ether Crude gen
tory No. Description. tern. ex- fiber. Iree-ex- Water. Ash.
tract. tract.
3220 Oowpea hay, D. E. I, Sample 1 ____ __ 14.80 3.03 25.97 34.42 12.68 9.10
3221 Oowpea hay, D. E. I, Sample 2 ____ __ 14.51 3.00 26.39 34.32 12.78 . 9.00
Average __________________________ __ 14-66 3.02 26.18 34.37 12.73 9,05
3224 Sorghum hay, D. E. II, Sample 1_-__ 5.67 1.64 28.18 46.79 10.87 6.85
3225 Sorghum hay, D. E. II, Sample 2---- 5.49 1.67 27.95 47.68 10.25 6.96
Average .......................... -_ 5.58 1.66 28.07 47.24 10,56 6,91
3277 Alfalfa hay, D. E. III, Sample 1_____ 16.34 1.49 28.39 34.78 10.68 8.32
3278 Alfalfa hay, D. E. III, Sample 2___-- 15.99 1.33 28.29 35.13 11.30 7.96
Average __________________________ -_ 16.17 1.41 28.34 34.96 10.99 3,14
3283 Residue Sheep 4, D. E. III (Alfalfa)- 10.66 0.72 42.38 33.47 4.64 8.13
3587 Johnson grass hay, D. E. IV, Sam- 7.54 1.60 27.11 41.87 8.78 13.10
e 1.
3588 Jolinson grass hay, D. E. IV, Sam- 7.34 1.75 27.69 43.01 8.60 11.61
p e 2.
Average .......................... _- 7.44 1.68 27.40 42.44 8.69 12,36‘
3592 Residue Sheep 1, D. E. IV (Johnson 5.31 0.88 13.07 19.56 6.24 54.94
grass).
3593 Residue) Sheep 3, D. E. IV (Johnson 3.97 0.57 34.66 36.50 13.12 11.18
grass .
3594 Residue) Sheep 4, D. E. IV (Johnson 4.53 0.58 26.82 28.74 9.08 30.25
grass .
3595 Oat hay, D. E. V, Sample 1 ________ __ 7.89 2.40 27.90 44.39 8.48 8.94
3596 Oat hay, D. E. V, Sample 2 ________ _- 8.18 2.42 27.83 44.04 8.23 9.10
Average __________________________ _- 8.04 2.41 27.87 44.22 8,36 9,02
3599 Residue Sheep 1, D. E. V (Oat hay)“ 8.20 2.15 24.48 38.66 7.61 18.901
3600 Residue Sheep 4, D. E. V (Oat hay)-_ 8.01 2.00 26.99 39.76 7.81 15.43
3609 Burr clover D. E. VI, Sample 1 ____ _- 23.20 2.16 21.21 31.91 9.90 11.62‘
3610 Burr clover, D. E. VI, Sample 2 ____ __ 23.66 2.07 20.40 31.74 9.56 12.57‘
Average .......................... -_ 23.43 2.12 20.81 31.83 9.73 12.10-
3625 Japan rice straw, D. E. VII, Sample 1 4.03 1.20 33.46 37.52 6.64 17.15.
3626 Japan rice straw, D. E. VII, Sample 2 3.80 1.27 33.05 38.11 6.72 17.05
Average ........................ -1" 3.92 1.24 33.26 37.82 6,68 17,10-
3880 Residue Sheep 2, D. E. VII (Rice 5.44 1.13 32.97 36.12 6.55 1.7.79’
straw).
3881 Residue Sheep 3, D. E. VII (Rice 3.68 0.80 35.76 36.25 6.08 17.43
straw).
3882 Residue) Sheep 4, D. E. VII (Rice 3.91 1.11 33.42 38.54 6.02 17.00
straw . 5
3649 Vetch hay, D. E. VIII, Sample 1____ 14.96 1.62 ' 27.57 37.30 6.69 11.86
3650 Vetch hay, D. E. VIII, Sample 2_-__, 15.03 1.53 26.99 37.75 6.83 11.87
Average ........................... _: 15.00 1.58 27.28 37.53 6.76 11,37
3883 Buffalo grass hay, D. E. IX, Sam-i 7.05 1.24 28.22 44.87 7.36 11.26
ple .
3884 Butlfalo grass hay, D. E. IX, Sam- 7.05 1.16 27.05 45.98 6.93 11.83
p e 2.
Average ........................... -- 7.05 1.20 27.64 45.43 7.30 11,55
4238 Johnson grass hay, D. E. X, Sam- 7.07 1.39 31.08 44.73 7.83 7.90
pe .
4239 Jolinson grass hay, D. E. X, Sam- 6.77 1.41 30.44 44.73 8.29 8.36
p e 2. ‘
Average ........ -3. _______________ __ 6.92 1.40 30.76 44.73 8.06 3,13
-4247 Baled millet, D. E. XI, Sample 1-_-_ 4.48 1.71 27.89 47.89 9.03 9.00
4248 Baled millet, D. E. XI, Sample 2---- 3.96 1.534 27.92 48.85 9,81 8,93
Average .......................... -- 4.22 1.62 27.91 48.37 9.42 ' 8,97
4252 Bermuda hay, D. E. XII, Sample 1-- 6.37 1.58 27.37 46.26 10.61 7.81
4253 Bermuda hay, D. E. XII, Sample 2-- 6.49 1.62 27.94 47.14 8.86 7,95
Average .......................... -- 6.43 ‘ 1.60 27.62 . 46.70 9.74 7,83
4259 Peanut hay, D. E. XIII, Sample 1--- 13.48 7.91 23.14 39.89 8.74 6.84
4260 Peanut hay, Dr. E. XIII, Sample 2--- 13.64 9.21 22.50 38.15 8.46 8.04
Average .......................... -- 13.56 8.56 22.82 ' 39.02 8.60 7.44
4277 Para grass, D. E. XIV, Sample 1---- 3.34 0.93 33.84 46.17 8.70 7,03
4278 Para Grass, D. E. XIV, Sample 2---- 3.34 0.89 33.76 46.83 8.01 7.17
Average .......................... _- 3.34 0.91 33.80 46.74 8.36 7,10
4282 Residue Para grass, D. E. XIV, 3.83 1.01 31.77 46.16 8.97 . 8.3.

Sheep 1.

16

TABLE (i-COMPOSITION OF FEEDING- STUFFS AND RESIDUES FROM DIGES 

TEXAS AGRICULTURAL EXPERIMENT STATIONS

EXPERIMENTS-continued .

  

1

Nitr0-‘
Labora- Pr0- Ether Crude gen
tory N0. Description. tein. ex- fiber. free-ex- Water
tract. a i
4283 R/esslildue Para_ grass, D. E. XIV, 3.86 0.93 29.86 46.77.
eep 3. 1
4284 R?idue Para grass, D. E. XIV, 4.87 1.16 30.66 44.89‘
heep 4.
4546 Katfir fodder, D. E. XV, Sample 1--- 9% 2.16 23.68 44.44 . _ I
4547 Kaffir fodder, D. E. XV, Sample 2--- 10.14 2.10 23.81 44.22) . 
Average __________________________ -- 9.99 2.13 23.80 44.33; 8.571
4551 Ressidue Kaffir fodder, D. E. XV, 8.64 1.80 29.82 3959i 8.70‘
heep 6. 1
4552 Guam grass, D. E. XVI, Sample 1---- 8.46 1.73 25.80 49.631 7.45_
4553 Guam grass, D. E. XVI, Sample 2---- 8.40 1.72 26.20 49.16" 7.871
Average __________________________ -- 8.4a 1.73 20.00 49.40! 7.001 ,
4557 Corn shucks, D. E. XVII, Sample 1___ 3.26 0.62 30.33 54.511 7.851
4558 Uorn shueks, D. E., XVII, Sample 2-- 3.13 0.74 30.31 54.68 7.64 -
Average ______________________ _.\____ 3.20 0.68 30.32 54.60; 7.75
4562 Residue corn shucks, D. E. 17, Sheep 4 8.92 0.99 23.62 41.05; 6.91 '
4663 Honduras-rice straw, D. E. XVIII, 3.78 1.15 30.76 4050i 7.58
Sample 1. v !
4664 Honduras rice straw, D. E. XVIII, 4.17 1.15 30.53 40.73, 7.34
Sample 2.
Average __________________________ _- 3.98 1.15 30.65 40.62 7.46
4668 Residue, D. E. XVIII ________________ __ 4.11 1.04 28.49 42.85, 6.73
4669 Residue, D. E. XVIII ________________ -- 3.19 0.58 32.49 4133i 6.63

   

    

 

DIGESTION EXPERIMENTS WITH TEXAS HAYS AND FODDERS 17

'I'ABI.E 7—COMPO~SI'I‘ION OF EXCREMENTS FROM DIGESTION EXPERIMENTS.

 

. § Nitro-
Labora- Digestion- j Pro~ Crude gen
tory No. Sheep: Experiment: Feed. ‘ teln Fat fiber free-ex- Water.» Ash.
tract. E
3222 Sheep 2, D. E. I, Oowpea hay ______ __ 9.56 4.97 29.88 27.65 9.15‘ 18.79
3223 Sheep 3, D. E. I, Cowpea hay ______ -- 9.51 5.14; 29.62 28.28 8.50 18.95
3258 Sheep 1, D. E. II, Sorghum hay___-_ 10.06 2.07, 24.37 43.98 7.33 12.19
3259 Sheep 2, D‘. E. II, Sorghum hay____ 10.00 2.00} 25.21 43.40 7.45 11.82
3260 Sheep 3, D. E. II, Sorghum hay_____ 10.08 2.041 24.20 43.66 7.87 12.15
3279 Sheep 2, D. E. III, Alfalfa hay _____ __} 11.12 3.621 40 82 27.78 7.26. 9.40
3280 Sheep 3, D. E. III, Alfalfa hay _____ __t 11.56 3.58‘ 40.57 , 28.50 6.30, 9.49
3281 Sheep 4, D. E. III, Alfalfa hay _____ __ 11.39 3.57 42.13 28.08 6.39 8.44
3589 Sheep 1, D. E. IV, Johnson Grass 9.98 1.80 19.68 42.68 5.62‘ 20.24
hay.
3590 Shheep 3, D E. IV, Johnson Grass 9.36 1.77 18.47 42.97 5.42‘ 22.01
ay. ~ -
3591 Slieep 4, D E. IV, Johnson Grass 8.93 1.68 19.83 43.19 5.74 20.63
ay. 3
3597 Sheep 1, D. E. V, Oat hay __________ __ 9.75 2.22 23.39 40.97 4.99 18.68
3598 Sheep 4, D. E. V. Oat hay __________ __ 8.92 2.02 26.67 41.51 4.52 16.36
3623 Sheep 2, D. E. VI, Burr clover ____ __ 16.08 8.14 26.97 27.73 4.51 16.57
3624 Sheep 3, D. E. VI, Burr clover _____ __ 16.57 8.04 26.87 27.77 4.56 16.19
3877 Sheep 2, D. E. VII, Rice straw ____ __ 5.73 2.25 23.30 36.50 4.78 27.44
3878 Sheep 3, D. E. VII, Rice straw .... -_ 5.61 2.10 24.20 37.30 4.88 25.91
3879 Sheep 4, D. E. VII, Rice straw ____ __ 5.60 2.35 22.91 37.53 4.81 26.80
3700 Sheep 1, D. E. VIII, Vetch hay ____ __ 10.37 2.44 33.32 25.72 5.31 22.84
3885 Sheep 2, D. E. IX, Buffalo Grass hay 7.27 1.69 24.60 41.79 5.21 19.44
3886 Sheep 3, D. E. IX, Buffalo Grass hay 7.28 1.701 25.13 41.46 5.14 19.29
3887 Sheep 4, D. E. IX, Bufialo Grass hay 7.09 1.68 25,69 41.84 5.04 18.66
4240 Sheep 1, D. E. X, Johnson Grass hay 8.76‘ 1.80 27.18, 41.94 6.94 13.38
4241 Sheep 3, D.  X, Johnson Grass hay 8.65 1.76 24.17‘, 45.10 6.84 13.48
4242 Sheep 4, D. E. X, Johnson Grass hay 8.03 1 83 24.66, 45.60 6.78 13.10
4249 Sheep 1, D. E. XI, Millet ___________ --, 7.57 1.81 23.30, 47.771 5.83 13.72
4250 Sheep 3, D. E. XI, Millet ___________ __ 7.07 1.76 21.681 '48.00 5.80 15.69
4251 Sheep 4, D. E. XI, Millet ___________ __ 6.60 1.54 25.10: 46.33 5.35 15.08
4254 Sheep 1, D. E. XII, Bermuda hay____ 6.91 1.61 26.21; 45.37 7.81 12.09
4255 Sheep 3, D. E. XII, Bermuda hay-___ 6.29 1.74 27.75; 45.43 8.26 10.53
4256 Sheep 4, D. E. XII, Bermuda hay___- 6.27 1.67 26.301 46.51 8.26 10.97
4261 Sheep 1, D. E. XIII, Peanut hay_____ 8.50 2.43 34.271 29.31, 8.61 16.88
4262 Sheep 3, D. E. XIII, Peanut bay"--- 9.49 2.75 32.87, 27.57} 8.74 18.58
4263 Sheep 4, D. E. XIII, Peanut hay____- 8.88 2.74 33.24. 28.20} 8.27, 18.67
4279 Sheep 1, D. E. XIV, Para Grass hay 5.49 .91 29.131 45 96 7.89 10.62
4280 Sheep 3, D. E. XIV, Para Grass hay 5.23 .92 30.171 47 07 7.36 9.25
4281 Sheep 4, D. E. XIV, Para Grass hay 5.52 .91 30.46, 45 86 7.56, 9.69
4548 Sheep 4, D. E. XV, Kaffir f0dder-___ 9.69 2.36 22.41; 40 M 7.35. 17.27
4549 Sheep 5, D. E. XV, Kaflir f0dder__.__ 10.15 3.10 30.10 31 44 7.10; 18.11
4550 Sheep 6, D. E. XV, Kafih‘ f0dder____ 11.04 2.77 20.13 41 00 7.24» 17.82
4554 Sheep 1, D. E. XVI, Guam grass_-___ 8.25 1.58 22.66; 47 36 9.71! 10.44
4555 Sheep 3, D. E. XVI, Guam grass_____ 8.03 1.43 23.69‘, 47 86 9.81; 9.18
4556 Sheep 5, D. E. XVI, Guam grass-___; 8.98 1.58 22.82; 46 50 9.62 10.50
4559 Sheep 1, D. E. XVII, Corn shucks__ 8.13 0.92 26.001 4985 8.62; 6.48
4&0 Sheep 4, D. E. XVII, Corn shucks" 8.95 1.06 25.381 49 55 8.58] 6.48
4561 Sheep 5, D. E. XVII, Corn shucks__ 10.91 1.27 19.69 50 51 9.36| 8.26
4665 Sheep 1, D. E. XVIII, Rice straw____ 5.16 1.31 23.32 38 18 6.84 25.19
4666 Sheep 4, D. E. XVIII, Rice straw____ 5.06 1.11 23.83, 39 18 6.82 24.00
4667 Shee]. 5, D. E. XVIII, Rice Straw____ 5.94 1.76 21.771 38 6a 6.86 25.02
I

18 TEXAS AGRICULTURAL EXPERIMENT STATIONS

TABLE 8—NUTRIENTS FED, EXGRETED AND DIGESTED, IN GRAMS PER PE‘.
- Nitro?
. Pro- Ether Crude e gen 1

Remarks . tein . ex- fiber . tree-ex

tract. tract.

Period 1; Feed, Oc-wpea hay- i _

Sheep N0. 1; Fed 4000 gm. N0. 3220-1---_-----..--------- .4 120.8 1047.2 1374,

E aten 586 . 4 120 . 8 1047. 2 1374.
Excreted 1729 gm. N0. 3292 165.3 85.9 516.6 478.
Digested _ 421.1 34.9 530.6 896.
Percentage digested 71. 28.88 50.67 65.22

Sheep No. 2; Fed 4000 gm. No. 02201 ................ -- 080.4 120.8 1047.2 1374. 0
Eaten -_-__ 080.4 120.8 1047.2 1374.81
Excreted 1687 gm. No. 3223 160.2 86.7 499.7 477.1
Digested 426.2 34.1 547.5 897.7 »
Percentage digested 72.68 28.23 52.28 

Period 2; Sorghum Hay-

Sheep No. 1; Fed 4800 gm. N0. 3224-5 ________________ -- 267.8 79.7 1347.4 2267.5
Eaten 267.8 79.7 1347.4 2267.5 1
Excreted 1860 gm. No. 8908 187.1 38.5 453.3 818.0];
Digested - _ 80.7 41.2 804.1 1440.5 "
Percentage digested 30.13 51.69 66.36 64.01 i

Period 2; Peed, Sorghum Hay-— 

Sheep No. 2; Fed 4000 gm. N0. 3224-5.-_--_--------_..- 223.2 66.4 1122.8 1889.0 
Eaten 220.2 00.4 1122.8 1889.0 
Excreted 1560 gm. No. ‘R950 156.9 31.2 393.3 677.0] _‘
Digested 00.3 05.2 720.5 1212.0 1
Percentage digested 29.7 53.01 64.97 64.18

Sheep N0. 3; Fed 4000 gm. N0. 3224-5------------------- 223.2 66.4 1122.8 1889.6 l.
Residue 5 gm. N0. 3224-5 - 0.3 0.1 1.4 2.4 '7‘
Iqateu __ 222.9 66.3 1121.4 1887.2’
Excreted 1440 gm. No. W" 145.2 20.4 848.0 028.7
Digested _ 77.7 36.9 772.9 1258.5
Percentage digested 34.86 55.66 68.92 66.68

Period No. 3: Feed, A1ta1ia_Hay-— ° 1

Sheep No. 2; Fed 4400 gm. I\0. 3277-8 ----------------- -_ 711.5 62.0 1247.0 1538.2
Residue 3 gm. No. 3277-8 _- .. 0.5 ______ __ 0.9 1.0
Eaten 711..0' 62.0 1246.1 1537.2
Excreted 1667 gm. N0. 3279 ------------------------- _- 185.4 60.3 680.5 463.1
Digested __ 525.6 1.7 565.6 1074.1
Percentage digested 73.92 2.74 45.39 69.88

Sheep No. 3; Fed 4400 gm. N0. 3277-8 ---------------- -- 711.5 62.0 ‘1247.0 1538.2
Eaten - 711.5 62.0 1247.0 1538.2
Excreted 1511 gm. NO. 3280 174.7 54.1 613.0 655.8
Digested 536.8‘ 7.9 634.0 882.4
Percentage digested 75.4 12.74 50.80 57.37

Sheep N0. 4; Fed 4400 gm. N0. 3277-8 ----------------- -- 711.5 62.0 1247.0 1538.2
Residue 86 gm. N0. 3283 9.2‘ 0.6 36.4 28.8
Eaten 702.3} 61.4 1210.6 1509.4
Excreted 1732 gm. N0. 3281 197.3‘ 61.8 729.7 486.3
Digested _ 505.0 0.4‘ 480.9 1023.1
Percentage digested 71.91 0.65 39.72 67.78

Period 4; Johnson Grass Hay-

Sheep 1; Fed 3600 gm. NO. 3587-8 ---------- __' --------- -- 26.78 60.5 986.4 1527.8
Residue 110 gm. No. 3592 5-8 1.0 14.4 21.5
Eaten 262.0 59.5 972.0 1506.3
Excreted 1720. gm. No. 3589 ..................... _.- 171-7 31.0 338.5 734.5
Digested - 00.3 28.0 003.5 772.2 -
Percentage digested 34.47 47.90 65.17 51.27

DIGESTION EXPERIMENTS WITH TEXAS HAYS AND FODDERS. 19
TABLE 8—NUTRIENTS FED, EXORETED AND DIGESTED, IN GRAMS PER
PERIOD-wontinued

Nitr0- i
Pro- Crude . gen
Remarks, tein. fiber. |free-ex-. Ash.
i tract. i

Sheep Ne 3; Fed 3666 gm, Ne, 3587-8 _________________ __ ‘ 267.8 986.4 1527.8 445.0
Residue 471 gm. No. 3593 ............................. -- 18-7 163-2‘ 171-9; 52-7
Eaten 249.1 823.2? 1355.9} 392.3
Excreted 1476 gm. N0. 3590 -------------------------- -- 133-2 272-6‘ 634-2. 324-9
Digested 110.9 5506i 721.7} 67.4
Percentage digested 4 44.52 66.88‘ 53.231 17.18

Sheep Ne. 4; Fed 8600 gm. No. 9587-8 ................. -- 267.8 986.4, 1527.8 445.0
Residue 158 gm. No. 3594 7.2 42.41 45.4 47.8
Eaten ____ -- 260.6 944.0% 1482.4 397.2
Excreted 1637 gm. No. 3591 _________________________ -- 146.2 324.61 707.0 337.7
Digested _ 114.4 6194i 775.4 59.5
Percentage digested -_-_ 43.90_ 65.611 52.31 14.98

Period 5: Feed, Oat Hay— 

Sheep N0. 1; Fed 4000 gm. N0. 35956 ................. -- 321.6 96.4 1114.8; 1768.8 360.8
Residue 173 gm. No.'3599 ____________________________ -- 14.2 3.7 42.4: 166.9 32.7
Eaten _ _ _ _ _ _ _ _ . _ _ _ _ . _ -_ 307.4 92.7 1072.4? 1701.9 338.1
Excreted 1281 gm. No. 3597 ___________________ -_~ _____ __ 124.9 28.4 299.6] 524.8 239.3

i
Digested 182.5 64.3§ 772.8; 1177.1 98.8
Percentage digested 59.37 69.361. 72.06‘ 69.16 29.22

Sheep Ne. 4; Fed 4000 gm. No. 35956 ................ _- 321.6  1114.81 1768.8 360.8
Residue 242 gm. N0. 3600 ............................ -_ 19.3 4.8. 65.31 96.21 37.3
Eaten 302.3 91.6 1049 5i 1672.61 323.5
Excreted 1433 gm. No. 3508 127.8 28.9 382.2; 594.8‘ 234.4
Digested _ 174.5 62.1 667.3} 1077.8 89.1
Percentage digested ._ 57.72 68.45 $.58. 64.44‘ 27.54

Period 6; Burr Clover Hay— { i

Sheep N0. 2; Fed 4000 gm. No. 3609-10 ________________ __ 937.2 84.8 832.4; 1273.2 484.0
Residue 5 gm. N0.-3609-10-. ___________________________ _. 1.2 0.1 1.0i 1.6 0.6
Eaten 936.0 84.7 831.4% 1271.6 ' 483.4
Excreted 1096 gm. N0. 3623 __________________________ __ 176.2 89.2 295.6; 303.9 181.6
Digested _ ~ - 759.8 4.5 585.8! 967.7; 301.8
Percentage digested -_- 81.18 5.31 64.44‘ 76.10 62.43

Sheen No. 3; Fed 4000 gm. No. 3669-10 _______________ _- 937.2 84.8 832.4 1273.2 484.0
Residue 15 gm. N0. 3609-10 .......................... _- 3.6 0.3 3.0 4.8 _ 1.8
Eaten ---_ 933.6 84.5 829.4 1268.4 482.2
Excreted 1110 gm. N0. 3624 183.9 89.2 298.3 308.2 179.7
Digested 749.7 4.7 581.1 960.2 302.5
Percentage digested 80.30 5.50 64.03 75.70 62.73

Period 7: Feed Rice Straw- _ I

sheen N0. 2; Fed 3600 gm. No. 36256 ______________ __ 141.1 44.6 11974 1361.5 615.6
Residue 53 gm. No. 3880 2.9 0.6 17.5 19.1 9.4
Eaten 138.2 44.0 1179.9 1342.4 606.2
Excreted 1914 gm. No. 3877 .......................... -- 119.7 43.1 446.0 698.6 525.2
Digested . 18.5 0.9 733.9 643.8 81.0
Percentage digested 13.39 20.46 62.201 47.96 13.36

Sheep No. 3: Fed 3600 gm. No. 36256 _________________ __ 141.1 44.6 1197.4 1361.5 6156
Residue 305 am. No. R881 11.2 2.4 109.1 110.6 57.2
Eaten 1 129.9 42.2 1088.3 1250.9 558.4
Excreted 1933 2m. No. 3878 .......................... -- 108.5 40.6 467.8 721.0 500.8
Digested 21.4 1.63 620.5 529.9 57.6
Percentage digested 16.47 3.79‘ 57.02 42.36 10.31

Sheep No. 4; Fed 3600 gm. No. 3625-6--_____.____-_-____ 141,1 I 44,6 11974 1361,15 615,6
Residue 170 8m. N0. 3882 6.6 1.9 56.8 65.5 28.9

PERIOD-continued.
‘ Nitro- "i
' Pr0- Ether Orude gen
Remarks . tein . ex- fiber . free-ex-
tract. tract.
Eaten __ ................ -- 134.5 42.7! 1140.0 ~1290.0
Excreted 1912 gm. N0. 3879 __________________________ __ 107.1 44.9; 438.0 717.6 ,-'
Digested ________________________________ -1 _____________ _- 27.4 2.23 702.6 578.4 '5
Percentage digested ___________________________ ___ ______ __ 20.87 5.17§ 61.60 44.63 .

Period 8; Feed Vetch Hay- I 

Sheep NO. 1; Fed 4000 gm. N0. 3649-50 ________________ __; 600.0: 63.2‘ 1091.2 1501.2 “
Eaten ................ "f 000.0 03.2 1091.2 1501.2
Excreted 1491 gm. N0. 3700 __________________________ _- 154.6 36.4 496.8 383.5
Digested , ______________________________________________ __ 445.4 26.8 594.4 1117.7
Percentage digested .................................. __ 74.23 42.41 54.47. 74.45

Period 9; Bufiaio Grass Hay-  ~

Sheep N0. 3; Fed 4000 gm. 'N0. 3883-4 __________________ .. 282.0 48.0 1105.6 1817.2
Residue 5 gm. N0. 3883-4 ______________________________ .. 0.4 0.1} 1.4! 2.3
Eaten _________ -_‘ _______________________________________ __ 281 0 47.9 1104.2§ 1814.9
Excreted 1881 gm. N0. 3886 __________________________ __ 136.9 32.01 472.77 779.9
Digested 144.7 15.91 031.  1035.0
Percentage digested __________________________________ __ 51.38 33.19‘ 57.20 57.03

Sheep No. 2; Fed 4000 gm. No. 3%»! __________________ __ 282.0 48.0: 1105.6 1817.2

\ .
Eaten _ _ _ . . . _ _ . _ . . . . _ -. .... __ 282.0 480.0; 1105.0 1817.2 ' '
Excreted 1701 gm. No. 3885 123.7 28.8 418.4 710.8
Digested ' -- ___ 158.3 19.2‘ 087 2. 1100.4
Percentage digested ________________________ ___ _________ __ 56.13 40.00" 62.16; 60.88

l

Period 10; Feed Johnson Grass Hay—- ' l '

Sheep N0. 1; Fed 4000 gIn. N0. 4238-9 _________________ __1 276.8  1230.4 1789.2
Residue l0 gm. N0. 4238-9 _______ ___. _________________ __1 0.3 0.1f 1.5 2.2
Eaten i _____ __ 276.5 55.9 1228.9 1787.0
Exereted 1512 gIn. N0. 4240 .......................... -- 132.5 27.2 410.9 634.1
Digested _______________________________________________ __ 144.0 28.7 _ 818.0 1152.9
Percentage digested ___________________________________ _- 52.08 51.35 66.56 64.52

Sheep No. 3; Fed 4000 gm. N0. 42389 __________________ __ 270.8 50.0‘ 1230.4 1789.2
Residue 5 gm. N0. 4238-9 ______ _-. ___________________ __ 0.3 0.1 1.55 2.2
Eaten .................................................. _- 270.5 55.9 1228.91 1787.0
Excreted 1577 gm. No. 4241 ___________________________ -- 136.4 27.8 381.2‘ 711.2
Digested -._; ............................................ -- 140.1 28.1 8477i 1075.8
Percentage digested ..................................... _- 50.67 50.27 68.98‘ 60.20

Sheep N0. 4; Fed 4000 gm. N0. 42389 ________________ -_ 270.8 50.0 12304 1789.2
Residue 5 gm. N0. 4238-9 ____________________________ -l 0.7 -0.1 3.8 4.5
Eaten __________________________________________________ -_ 276.1 55.9 1226.6 1784.7
Excreted 1634 gm. N0. 4242 ___________________________ __ 131.2 29.9 402.9 745.1
Digested _____________________ _-‘_____‘ _________________ -_ 144.‘) 26.0 823.7 1039 6

I _ Percentage digested ___________________________________ -_ 52.48 46.51 67 15 58.25

Period 11: Feed Baled Millet-

Sheep No. 1; Fed 4000 gIn. N0. 4247-8 ................ _- 168.8 64.8 1116.4 1934.8
Residue 34 gm. N0. 4247-8 ___________________________ .._ 1.4 0.6 9.5. 16.4

icaten ___________________________________________________ __ 107.4 04.2‘ 1100.9‘ 1918.4
Excreted 1686 gm. N0. 4249 __________________________ __ 127.6 30.5 392.8 805.4
Digested _____________________________________________ __ 39.8 33.7 714.1 11113.0
Percentage digested __________________________________ __ 23.77 52.49 04.511 57.90

Sheep No. S; Fed 4000 gm. N0. 4247-8 __________________ __ 168.8 64.8 1116 4i 1934.8
Residue 20 gm. N0.4247-8 ____________________________ -- 0.8 0.3] 5.6‘ 9.7
Eaten _________________________________________________ -_ 108.0 04.5§ 1110.8; 1925.1’
Excretefl 1564 gm. N0. 4250__-_~. _____________________ -- 110.6 27.5; 339.1; 750-7
Digested ............................................... _- 57.4 37.05 771.7 1174.4.

34.17 57.36‘ 69.47 61.01

20 TEXAS AGRICULTURAL EXPERIMENT STATIONS

TABLE 8—NUTRIENTS FED, EXCRETED AND DIGESTED, IN G-RAMS 

Percentage digested .................................. --

DIGEsTION EXPERIMENTS WITH TEXAS HAYS AND FODDERS 21.

TABLE 8—NUTRIENTS FED, EXORETED AND DIGESTED, IN GRAMS PER

PERIOD-continued.
Nitro-
Pr0- Ether Crude gen
Remarks . tein . ex- fiber . iree-ex- Ash .
tract. tract.

Sheep N0. 4; Fed 4000 gm. N0. 4247-8 __________________ __ 168.8 64.8 1116 4 1934.8 358.8
Residue 30 gm. N0. 4247-8 ___________________________ __ 1.3 0.5 8 4 14.5 2.7
Eaten _________________________________________________ __ 167.5 64.3 1108.0 1920.3 356.1
Excreted 1704 gm. No. 4251 ........................... -- 112.5 26.2 427 7 789.5 257.2
Digested 55.0 38.1 680.3 1130.8 98.9
Percentage digested ___________________________________ __  59.29 61.39 58.88 27.77

Period 12; Feed Bermuda Hay—-

Sheep N0. 1; Fed 4000 gm. N0. 4252-3 __________________ __ $57.2 64.0 1104.8 1868.0 315.2
Residue 12 gm. N0. 4252-4 ___________________________ __ 0.8 0.2 3.3 5.6 0.9
Eaten ___~ 256.4 63.8‘ 1101 5 1862.4 314.3
Excreted 1920 gm. N0. 4254 .............. _____ _________ .._ 132.7 309* 503 2 871.1 232.1
Digested 123.7 ‘ 32.91 598.3; 991.3 82.2
Percentage digested ___- 48.25 51.57 54.32; 53.23 26.15

sheep No. s; Fed 4000 gm. N0. 4252-0 ................... -- 257.2 04.0; 1104 s‘ 180s 0 015.2
Residue 12 gm. No. 4252-4 ___________________________ __ 0.s 0.2; s] 5.0 0.9
Eaten .................................................. __ 256.4 63.8 1101.5 1862.4 314.3
Excreted 2110 gm. No. 4955 132.7 36.7 585.5 958.6 222.2
Digested ___ ____ 323.7 27.1 516.0 903 8 92.1
Percentage digested 48.25 42 8 46.84 48 53 29.30

§hep N0. 3; Fed 4000 gm. N0. 4252-3 ___________________ __ 257.2 64.0 1104.8 1868.0 315.2
Residue l5 gm. No .................................... __ 1.0 0.2 4.0 7.0 1.2
Eaten ___- - _- \ J 250.2 03.8 1100.8! 1001.0 31.4.0
Excreted 2044 gm. N0. 4256 ........................... -_ 128.2 34.1 537.6 951.7 224.2
Digested 128.0 29.7 563.2 909.3 89 8
Percentage digested 49.96 46.55 48.86 51.16 28 60

?eriod 13; Feed Peanut Hay-—

;heep No. 1; Fed 4000 gm. N0. 4259-60 ________________ _- 542.4 352.4 912.8 1560.8 297.6
Eaten __________________________________________________ -_ 542.4 342.4 912.8 1560.8 297.6
Excreted 1335 gm. N0. 4261 ........................... -_ 113.6 32.4 457.5 391.3 225.3
Digested _______________________________ _. - ............. -_ 428.8 310-0 455.3 1169.5 72.3
Percentage digested ______________________________ -.'__-- 79.00 90.53 49.88 74.93 24.29

meep No. 3; Fed 4000 gm. No. 425060 _________ ___ ____ __ 542.4 342.4 912.8 1560.8 297.6
Eaten __________________________________________________ _- 542.4 342.4 912.8 1560.8 297.6
Excreted 1246 gm. No. 4262 .......................... __ 118.2 34.3 409.6 343.5 231.5
Digested ___ ________________ -_ 424.2 308.1 503.2 1117.3 66.1
Percentage digested __________________________________ -- 78.21 90.00 55.13 71.58 22.21

;heep No. 4; Fed 4000 gm. N0. 425960 ................ __ 542.4 342.4 912.8 1560.8 297.6
Eaten _________________ __ -_ - 542.4 342.41 012.8 1500.8 207.0
Excreted 1315 gm. N0. 4263 __________________________ -_ 116.8 36.0 437.1 370.8 245.5
Digested ______________________________________________ .... 425.6 306.4 475.7 1190.0 52.1
Percentage digested _ -- 78.47 89.49 52.11 76.24 17.51

?eri0d 14; Feed Para Grass—

iheep No. 1; Fed 4000 gm. No. 4277-8 __________________ __ 133.6 36.4 1352.0 1869.6 284.0
Residue 212 gm. N0. 4282 ............................. _- 8.1 2.1 67.4 97.9 17.5
Eaten _________________________________________________ __ 125.5 34.3 1284.6 1771.7 266.3
Excreted 2043 gm. No. 4279 .......................... -- 112.2 18.6 595.1 939.0 217.0
Digested _______________________________________________ -_ 13.3 15.7 689.5 832.7 49.5
Percentage digested -- _-__ 10.60 45.77 53.67 " 47.00 18.57

;heep N0. 3; Fed 4000 gm. N0. 4277-8 __________________ __ 133.6 36.4 1352.0 1869.6 284.0
Residue 40 gm. N0. 4283 ____ _~_ ...................... -- 1.5 0.4 11.9 18.7 4.1
Eaten __________________________________________________ -_ 132.1 36.0 1340.1 1850.9 279.9
Excreted 2175 gin. N0. 4280 .......................... -_ 113.8 20-0 656.2 1023.8 201.2

22 TEXAS AGRICULTURAL EXPERIMENT STATIONS

TABLE 8——NUTRIENTS FED,PEXCRETED _AND DIGESTED, IN GRAMS P

ERIOD-contmued. V.
Nitro» a
Pro- gen y
Remarks. tein freeex-
l tract.
Digested ___ 18.3 827.1 '7
Percentage digested .__- 13.86 44.6 i;
Sheep‘ No. 4; Fed 4000 gm. N0. 4277-8 ................. -- 1&6 1869.6 ‘
Residue 648 gm. N0. 4984 ___ 31.6 290.9 '
Eaten __ 102.0 1578.7 '7'
Iixcreted 1751 gm. N0. 4281 .................. -; ...... -- , 96.7 803.0 i
Digested 5.3 775.7 ’
Percentage digested 5.20 49.13
Period 15; Feed Kafir Fodder (Ba1ed)— '_
Sheep N0. 5; Fed 4000 gm. N0. 4546~7 ________ -". ...... -- 399.6 1773.2
Eaten ' 300.5 35.2 g 1773.2
Excreted 1409 gm. No. 4548 .......................... -_ 136.5 33.3 576.6
Digested - 263.1 51.9‘ 1196.6
Percentage digested 65.84 60.92 67.48 _
Sheep No. 5; Fed 4000 gm. No. 4540-7 ................. -- 399.0 _ 85.2 1173.2 
Eaten ___ 399.6 85.2 1773.2 "
Excreted 1433 gm. N0. 4549 .......................... -- 145.4 44-4 450.5
Digested 254.2 40.8 1322.7
Percentage digested ---- 63-63 47- 9 74.50
Sheep N0, 6; Fed 4000 gm. N0. 4546-7 ------------------ -- 399.6 85.3 1773.2
*Resfdue 3Q8 g[n_ NQ, 4551 26.6 5.5 121.9
Eaten __ ___- 426 2 87.7i 1895.1
Excreted 1567 gm. No, 4w) 173.0 43.4 642.5
Digested 253.2 4 .3 1252.6
Percentage digested 59-41 50 51 60.09
Period 16; Feed Guam Grass-Q f,
Sheep No. 1; Fed 4000 gm. N0. 4552-3 .................. -- 337.2 1976.0
Eaten ' 337.2" 1070.0
Excreted 1899 gm. No. 4554 _ 156.7 899.4
Digested ___- 170.5 1076.6
Percentage digested - 50.56 54.48
Sheep No. 8; Fed 4000 gm. N0. 4552-3---"--_---------..-- 337.2 1976.0
Eaten 337.2 1076.0
Excreted 1888 gm. No. 465B 151.6 903.6 l
Digested _ 185.0 1072.4 ‘p
Percentage digested 55.04 54.27 3Q‘
Sheep No. 5; Fed 4000 gm. No. 4552-3 ................ -_ 337.2 1976.0
Eaten _ ' 337.2 1976.0
Excreted 2015 gm. No, A556 180.9 937.0
Digested 7 150.3 1039.0
Percentage digested - 46.35 52.50 22.;
Period 17: Feed Corn Shucks— 
Sheep N0. 1: Fed 3200 gm. No. 4557-8 ......... -; ______ -- 102.4 21.8 1747.2 111
Added 45 gm N0. 4557-8 1.4 0.3 24.0 ‘
Eaten 103.3 22.1 1771 {s 112
Excreted 1350 gm. N0. 4'69 109.8 12.4 673.0 8'!
Digested 6.0 9.7 1098.8
Percentage digested 5.78 43.89 62.06 22

‘Residue from preliminary period eaten.

DIGESTION EXPERIMENTS WITH TEXAS HAYS AND Fonnnns. 23

TABLE 8~—NUTRIENTS FED, EXGRETED AND DIGESTED, IN GRAMS PER

PERIOD-continued.
Nitro-
Pro- Ether Crude gen
Remarks . tein ex- fiber free-ex- Ash .
tract. tract.

Sheep No. 4; Fed 3200 gm. No. 4557-8 ________________ __ 102.4 21.8 970.2 1747.2 111.0
Added 12 gm. No. 4557-8 1.1 ‘ 0.1 2.8 4.9 2.2
Eaten 103.5 21.9 973.0 1752.1 118.2
Excreted 1268 gm. N0. 4560----__---__-------_-----....-_ 113.5 13.4 321.8 928.3 82.2
Digested ................ -- 10.0 8.5 651 ‘7 923.8 31.0
Percentage digested 9.66 38.82 66 93 52.73 27.37

Sheep No. 5; Fed 3200 gm. N0. 4557-8--_-_‘-_---_---__--_- 102.4 21.8 970.2 1747.2 111.0
Added ..... __gm. N0. 4557-8 ____________ --. _____ __'--_-_ 0.1 0.0 1.2 2.2 0.1
Eaten 102.5 21.8 971 .4 1749.4 111.1
Excreted 1147 2m. N0. 4561 ____ 125.1 14.6 225.8 579.3 94 7
Digested 22.6 7.2 745.6 170.1 16.4
Percentage digested .-- 22.05 33.03 76.75 66.89 14.76

Period 1s; Feed Honduras Rice Straw (Ba1ed)— 9 

Sheep N0. 1: Fed 3200 gm. No. 4663-4 ................. -- 127.4 36.8 980 8 1299 8 517.1
Residue 3 gm. No. 4663-4 0.1 0.111 0 9 1 2 0.5
Eaten 127.3 36.2‘ 979 9 129s s 500.6
Excreted 1691 gm. No. 4m: 87.3 22.2 39 43 645 0 426.0
Digested 40.0 14.6 585.6 653.6 80.6
Percentage digested 31.42 39.67 59.76 50.33 15 91

Sheep N0. 4; Fed 3200 gm. N0. 4663-4 _______________ -- 127.4 36.8 980.8 1299.8 517 1
Added 45 gm. No. 4668 1.8 0.5 12.8 19.3 7 6
Eaten 129.2 37.3 936.6 1319.1 4 7
Excreted 1708 gm. N0. 4666 86.6 19.0 408.0 670.8 410 9
Digested 42.6 18.3 585.6 648.3 113 8
Percentage digested '2.97 _ 49.05 58.94 49.14 21 69

Sheep No. 5; Fed 3200 gm. N0. 4663-4 ................ -- 127.4 36.8 980.8 1299.3 517 1
Residue 777 gm. N0. 4660 24.8 _ 4.5 252.4 321.1 1Z2 i
Eaten 102.6 32.3 728.4 978.7 394 6
Excreted 1450 gm. No. 4667 __________________________ __ 86.7 25.7 317.6 563,9 365 0
Digested 15.9 6.6 410.8 414.8 29 6
Percentage digested --_- 15.50 20.43 56.39 42.38 7 50

24 TEXAS AGRICULTURAL EXPERIMENT STATIONS

TABVLE 9——COMPOSITION OF HAYS AND FODDERS REPORTEDIBY VARIOUS EX
MENT STATIONS. _

 

l Nltro- \ .
, Pro- Crude gen I : 
Description. tein. Fat. fiber. free-ex- Water» Ash. 3»,
‘ - tract. , N;
Alfalfa hay ____________________________ _- 13.35 1.74* 29.24 32.32 17.03 6.22 -j
Alfalfa hay ____________________________ __ 13.12 0.80; 41.05 30.17‘ 5.23; 9.03 .0
Alfalfa hay ____________________________ _- 15.03 1.62‘ 30.28 35.551 7.75‘ 11.77 "
Alfalfa hay, first cutting ______________ -_ 14.61 1.751 29.07 30.97 8.54, 9.00
Alfalfa hay, second cutting ___________ __ 13.88 1.66, 32.57 35.96 6.88 9.05
Alfalfa hay, second cutting ___________ __ 15.08 1.62 30.80 37.36 6.44 8.70
Alfalfa hay, first cutting ______________ __ 16.45 1.94 29.78 35.13 7.23‘ 9.47 ,
Alfalfa hay, second cutting ___________ _- 15.77 1.54 30.01 37.51‘ 5.11‘ 9.09 r
Alfalfa hay ____________________________ __ 19.66 2.59 25.19 40.52 4.101 7.94 _
Allfalfa hay, first cutting, 10 per cent in 16.88 1.42 29.38 34.01‘ 8.77‘ 9.54 
oom. ‘ '
Altfalfa hay, first cutting, 50 per cent in 15.88 1.25 31.41 34.23 7.711 9.49 j
oom. ';'
Alfalfa hay, first cutting, full bl00m___ 13.23 1.30 33.11 36.31’ 8.29 7.75 '
Alfalfa hay, first cutting in bloom ____ _. 13.81 2.26 27.28 34.97 15.02 6.69 1
Alfalfa hay, first cutting .............. _- 11.54 2.39 26.11 36.90 14.61 8.45 '_
‘Alfalfa hay, first cutting ______________ __ 11.64 2.35‘ 19.92 48.47 9.75 7.87 \
Alfalfalhay, first cutting, average of 22 14.86 1.80. 32.31 33.57 6.99 10.47
samp es.
Alfalfa hay, second cutting, average of 15.18 1.68 30.90 34.79 7.24 10.21
14 samples.
Alfalfa hay, third cutting, average of 13.81 1 58 32.98 34.90 6.80 9.95
11 samples.
Alfalfa hay ____________________________ -_ 12.48 2 72 30 92 34.74 10 00 9.15 _-__-'-‘_
Alfalfa hay _____________________________ _. 15.25 2 18 29.42 33.77 12.42 6.96 '
Alfalfa hay ____________________________ .._‘ 13.81 2.26 27.28 34.97 15.02 6.69
Alfalfa hay ____________________________ __ 12.25 3 51 31 O5 34.09 10 ‘)4 8.16
Alfalfa hay ____________________________ __ 12.50 2 70 27 55 38.58 13 00 6.67
Alfalfa hay ____________________________ __ 8.68 1 30 42 61 33.15 7 71 6.55
Alfalfa hay, average of‘ 5 samples---“ 13.00 1 51 27 16 42.23 8 60 7.50 ____ -.
Alfalfa hay, in bloom __________________ -- 16.87 2 01 27 12 36.11 10 0O 7.89
Alfalfa hay in dough __________________ __ 14.12 2 07 28 72 35.07 12 481 7.54
Alfalfa hay ____________________________ __ 12.91 3 04 28 91 32.26 15 35 7.53
Alfalfa hay,.average fourth cutting-___ 15.1.5 1 90 28 20 40.10 5 00 9.30
Alfalfa hay, average fourth cuttin<>'___ 20.50 1.88 26.69 28.49 12 75, 11.18
Alfalfa hay ____________________________ __ 16.50 ______ __ 29.62‘ ______ -_ 7.92. 6.58‘
Alfalfa hay ________________ __' __________________________ __ 26.50 ______ __ 11.62‘ 7.49
Alfalfa hay ____________________________ _- 10.3 1.02! 31.05 40.03 8.92 8.05
Alfalfa hay, this bulletin ______________ __ 16.17 1.41‘ 28.34 34.96 10.99 8.14
Alfalfa hay, average (34) ____________ _- 14.42 1.97‘ 29.98 35.81 9.51 8.41 _----
Bermuda hay __________________________ __ 8.75 2.19 21.65 ______ __ 10.00 8.60
Bermuda hay, 18 anal., first year after 18.72 2.49 21.57 40.71 7.38 9.13
planting. ' ‘
Bermuda hay, 16 anal., second year 11.91 2.09 24.85 46.60 6 52 8.03
after planting.
Bermuda hay, 13 anal., third year after 11.95 1.89 24.15 44.84 10.74 6.43
planting.
Bermuda hay __________________________ __7 11.50 1.34 19.96 45.09 14.30 7.81
Bermuda hay 1 _________________________ __ 9.16 1.83 20.16 46.06 14.30 8.49
8.75 2.19 21.64 48 46 10.36 8.60
Berrnuda- hay __________________________ __ 10.75 2.90 25.02 50.71 7.14 3.46
Bermuda hay, this bulletin ___________ __ 6.43 1.60‘ 27.62 46.70 9.74 7.88
Bermuda hay, average (s) __________  10.88 2.14 22.90, 46.39 10.05 7.50 .... --
‘ |
Burr 0r California clover ______________ "A 12.65 4.15 31.76 30.97 11.15 9.32
Burr or California clover, this bulletin, 23.43 2.12 20.81 31.83 9.73 12.10
Burr or California clover, average (2.); 18.04 3.13‘ 26.28 31 40 10 44‘ 10.71 _____-
' l i
Buffalo grass hay ___- __________________ "l 11.13 2.00 24.10 42.33‘ 8.16‘ 12.10
Buffalo grass hay _____________________ __ 5.19 2.28 26.66 48.25 7.24‘ 10.38
Buffalo grass hay, this bulletin ....... __ 7.05 1.20‘ 27.64 45.43‘ 7.30 11.55
Buffalo grass hay, average (3) _____ __ 7.85 1.82 26.13 45.29‘ 7.57‘ 11.34 ...... -_
Corn shucks, average (3) ______________ __ 2.35 0.52 29.85 55.68‘ 9.00 2.60
Corn shucks, this bulletin ............. -- 3.20 0.68, 30.32 54.60‘ 7.75 3.47
Corn shucks, average (2) ............ -_ 2.77 0.60’ 30.08 55.14 8.37 3.03 ______ __
l
Cow pea vine, overripe, leaves fallen--- 12.64 1.33, 29.58 40.44 ll 36, 4.76
Cow pea vine, full bloom .............. -_ 20.20 3.20 29.42 30.03 5.87‘ 11.27
Cow pea vine in full pod .............. __ 16.58 1.84 30.01 38.40 6.02 7.14
Cowpea _, 12.50 1.75 23.08 39.91! 14.54 7.50
Cowpea, cut in full bloom ............ _-‘ 16.06 3.63 16.54 46.98‘ 10.11 6.68

DIGESTION EXPERIMENTS WITH TEXAS HAYS AND Fononns 25

PABLE w/GOMPOSITION OF HAYS AND FODDERS REPORTED BY VARIOUS EXPERI-
MENT STATIONS-continued.

 

 

Nitro-
' I Pro- Crude gen ' Refer-
Description. tein. Fat. fiber. free-ex- Water. Ash. ence
tract. No.
OOWpea, pods two-thirds grown ______ __ 17.67 2.71 16.42 44.86 11.33 7.01 7
' Gowpea, average of 3 anal ____________ __ 17.61 3.61 19.64 40.32 10.29 8.13 8
~ Oowpea hay __________________________ __ 16.09 3.64 23.14 41.76 8.90 6.47 11
Cowpea, pods turning yellow _________ __ 8.37 1.75 30.16 42.82 10.00 6.80 15
Oowpea, overripe ______________________ __ 9.57 2.88 29.34 39.45 10.00 8.76 20
Cowpea vine, green ___________________ __ 15.30 2.60 22.21 41.40 10.00 8.49 20
Oowpea vine ___________________________ _- 15.95 3.63 16.63 47.01 10.11 6.67 17
- Oowpéa vine, average (6) anal _______ _- 13.82 2.37 20.54 44.28 10.00 8.90 17
, Oowpea vine, average (3) anal _______ __ 15.42 3.67 19.60 43.34 9.57 8.40 29
‘, Cowpea vine ___________________________ __ 14.10 2.51| 16.73 49.52 11.00 6.14 35
f Cow pea (early and late) ______________ __ 10.87 2.10, 27.28 40.07 9.02 10.66 21
 Cowpea, this bulletin __________________ __ 14.60 3.02, 26.13 34.37 12.73 9.05 40
g __ __i
E Oowpea vine, average (17) __________ __ 14.55 2 72, 23.31! 41.53 10.04 7.32 ...... -.
Johnson grass _________________________ __ 7.20 1.55‘, 30.90 44.47 10.00‘, 5.79 :9
Johnson grass, cut when panicles were, 5.77 1.67 30.301 44.80 12.31‘ 5.15 89
forming for bloom.  l 1
. Johnson grass _________________________ __i 7,44 2,28; 31.09 40.49, 10.50 5.20 4
Johnson grass ________________________ __‘ 3.70 2,33’ 29.32 44.32 7.57‘ 7.21 1o
Johnson grass, overripe _______________ __ 4.18 1.36 35.72 44.34 9.80 4.60 10
Johnson grass _________________________ __ 12,77 2.71 29.17 39.73 9.86 5.71 23
Johnson grass _________________________ __ 4.50 1,63 27,90 47.36 9.58 9.03 21
: Johnson grass, this bulletin ___________ __ 7.44 1.68 27.40 42.44 8.69 12.361 40
Johnson grass, this bulletin ___________ __ 6.92 1,40 30.76 44.73 8.06 8.13 40
' Johnson grass _________________________ __ 10.1] 2.43 21 47 44.77 14.30 6.92 41
Johnson grass _________________________ __ 4.35 1.78 35 45 47.11 6.10, 5.21 41
Johnson grass, average (11) ________ __ 7.22 1.90, 30 0O 44.06 9 70' 7.12 __-___--
Kflfil‘ fodder ____________________________ __ 3.31‘, 2.50; 30.37 47.40 10.94 5.48 4
Kafir fodder, milk stage _______________ __ 15.87 4.76, 19.65 39.48 8.41 11.90 21
Kafir, fodder, flour stage ______________ __ 14.25 5.03} 18.93 40.79 7.13 13.87 Z1
Kafir fodder, heading _________________ __ 17.50’ 4.19‘; 22.59 39.80 7.07 8.85 21
Kafir fodder, dough ___________________ __ 14.75 4.88‘, 21.58 34.40 7.23 17.16 21
4 Kafir fodder, dough ___________________ __ 16.12 5.55‘ 19.66 35.07 9.26 14.34 21
Kafir fodder, this bulletin _____________ __ 9.90 2.13 23 80 44.33 8.57 11.25 40
Kafir fodder, average (7) ____________ __ 13.10 4.15‘ 22.37 40.18 8.37 11.83 ...... --
Millet, barnyard, late bloom ___________ __ 9.37 136' 30.12 37.59 12.77 5.89 89
Millet, cattail, panicles just forming___ 11w 2.28 26.82 40.20 11.04 8.10 89
Millett, average composition __________ __ 7.59 1.78 27.53 49.19 7.25 6.18 3
Millet, German ________________________ __ 6.75 1.83 26.60 47.61 10.82 6.39 l»
Millet, pearl ___________________________ __ 8.31 1.66; 34.74 33.04 ' 9.90 12.35 l»
" Millet, pearl headed ____________________ __ 7.15 1.50 35.421 33.01 9.27 3.55, 4
Millet, Hungarian _____________________ __ 12.52 271i 22.33E 45.00 9.92 3.77; 4
; Millet, German, cut after full bloom--- 7.81, 2.37, 25.82‘ 47.81, 9.54 6.65 6
Millet, Ragi (India) ___________________ __ 2.40‘, 3.00= 20.65 51.84 16.09 6.02 12
Millet, Kodo (India) ___________________ __ 1.92‘ 2.10 30.57 46.71 14.75 3.95 12
- Millet, seeds in dough _________________ -_ 5.71 2.34 28.01 45.78 10.00 8.18 15
Millet, German ________________________ __, 7.87 2.45‘; 30.85 43.53 6.70 8.60 18
_ Millet, golden __________________________ _.§ 7.50 3.75, 31.95 41.53 6.52 8.75 18
, Millet, pearl ___________________________ __ 12.72 2.39‘ 31.40 31.15 14.45 7.99 22
, Millett _________________________________ __ 11.10 2.96 - 32.14 34.87 8.74 10.19 23
Millet, average 6 analyses _____________ __ 7.23 1.90 30.84, 47.87 7.46 4.70 29
’ Millet hay ______________________________ _. 8.53 1.47 30.131 43.71 7.96 8.Z) S0
Millet ___________________________________ __* 3.93 3.25, 26.40‘ 51.50 11.80 8.07 "37
Millet, this bulletin ____________________ n, 4.22 1.62, 27.91 48.37 9.42 8.97 40
Millet, average 20 analyses __________ -_= 7.75 ' 2.25, 28.72 43.19 10.21 7.88 ...... __
*1‘Oat hay, cut in bloom _______________ __ 7.25 185i 26.99 31.89 26.47 5.55 42
‘ *1‘Oat hay, cut when grain was in milk- 7.77 2.391, 23.15, 35.53 26.59 4.57 42
. HOat hay, cut grain in dough ________ __ 6.47 2.84» 26.57 42.61 16.30 5.21 42
. ‘WOat hay, cut part bloom, part milk" 8.80 2.791 28.87 39 37 13 76 6.41 42
‘WOat hay, cut part milk, part dough“ 6.59 3.301 29.45 41 13 13.28 6.25 42
' '0at hay, fair grade, seed two-thirds___ 9.80 4.10, 25.80 42.50 12.30 5.50 41
grown.
Oat hay in bloom ______________________ __ 6.16 2.73, 31.87 46.81 6.43 6.00 29
Oat hay, in milk _______ __ 9.85 2.431 31.04 41.63 9.55 5.50 Q
. Oat hay, ripe .......................... __ 5.52 2.38; 33.15 44.67 8.70, 5.58

‘Calculated to original water content.
iNote high water content.

-26 TEXAS AGRICULTURAL EXPERIMENT STATIONS

TABLE 9—OOMPOSITION OF HAYS AND FODDERS REPORTED BY VARIOUS E
MENT STATIONS-continued.

 

  

' Nitro- a
Pro- Crude gen -' ~
Description. tein. Fat. fiber. free-ex- Water. Ash. -
tract.

081i hay, nearly ripe---.._-----_-..-_-__-__ 8.56 4.55 21.05 53.38 6.15 6.31
Oat hay, this bulletin ............... -- 8.04 2.41 27.87 44.22 8.36 0.02 _

Oat hay, average (11)______________,_____ 7.72 2,39 27,30 42,16 13,44 5,99 ___.
Peanut vine hay, some puffs and some 10.32 8.57 25.96 42.92 10.44 6.80
Pnuts with meat. 4

63111111 vine hay -_----------__--_--..-___ 12.65 14.12 27.34 34.00 6.23 5.64
Peanut vine hay .... __'. ________________ -- 11.43 5.67 22.32 41.57 10.00 9.01 
Peanut V1116 hay, this bulletin ........ _- 13.56 8.56 22.82 39.02 8.60 7.44 ° 5

Peanut vine hay, average (4)--__--_-_ 11.99 7.98 24.61 39.38 8.82 7.22 ...
Rice straw 4.36 1.99’ 30.80 44.58 5.88 12.30
R199 StTRW ............................. __ 3.00 1.27 33.98 42.11 6.76 12.88
Japan (CFBXES) this bulletin ........... __ 3.92 1.24 38.26 37.82 6.68 17.10
gonguras gfexasg this bulletin _______ __ 3.28 1.15 30.65 40.62 7.46 18.16

on uras "exas ........... ______.._____ 4. 8 1,74 28."1 50.90 3.66 1 f1
Holldllfflfl (TBXIIS) ____________________ -- 4.72 1 87 32.25 32.20 8.97 19.97

AVfirfl-gfl (6) .......................... -- 4.11 1.54 31.56 41.37 6.57 14.85 -..
Sorghum fodder -____-- - 5.80 1.55 23.26 55.47 5.75 8.17
Sorghum fodder _______________________ -_ 7.81 2.05 33.15 44.84 7.15 5.00
Sorghum fodder, early orange_--_"____-__ 3.69 ‘ 5.47 27.7 49.64 10.02 3.42
Sorghum fodder, early amber ........ -_ 5.20 4.27 30.68 45.19 10.49 - 4.17
Sorghum fodder, orange .............. -- 13.75 3.77 20.01 46 23 7.81 8.43
Sorghum fodder, ripe ................ -.- 14.37 4.14 20.46 40 29 8.11 12.63
Sorghum fodder, sumac dough--________ 11.62 4.25 19.67 47.88 7.13 9.45
Sorghum fodder, amber, ripe _________ __ 13.50 , 4.18 18.23 36.06 10.78 17.25
Sorghum fodder, sourless, dough ____ _- 8.87 4.22 23.05 42.11 8.87 12.88
Sorghum fodder ______________________ __ 10.37 1.62 22.62 48.13 8.66 8.60
Sorghum fodder, this bulletin__-_-___-__ 5.58 1.66 28 07 47.24 10_.56 6.91

Sorghum fodder, aw erage (11) _______ __ 9.10 3.42 24.40 45 73 8.55 8.80 ---
Vetch hay 12.20 1.54 24.56 36.49 18.64 6.57
Vetch hay, 25.81 3.71 15.78 35.74 9.85 9.11
Vetch hay, 18.13 3.17 17 16 43.58 9.87 8.09
Vetch hay, . - 23.45 2.22 20.24 26.25 20.72 7.12
Vetch hay, 5 per cent bloom __________ _- 18.97 2.11 20.44 29.06 22.83 6.59
Vetch hay, full bloom _________________ __ 17.15 2.14 22.50 32.13 20.30 ' 5.79
Vefitfhdhay, seedpods formed but not 18.71 2.35 19.92 29. 22.48 7.04

le .

Vetch hay 18.12 1.13 29 50 36.06 7.44 7.75
Vetch hay, common ................. -- 13.75 . 2.28 27 67 39.90 8.90 7.51
Vetch hay, winter, in bloom _________ -- 23.33 3.01 19 93 37.02 11.85 5.86
Vetch hay, spring, in bloom .......... -- 15.99 2.41 26 13 37.30 11.08 7.09
Vetcn hay 14.45 2.11 28.12 39.67 8.35 7.30
Vetch hay 13.06 A 2.43 27.31! 40.15 9.45 7.70
Vetch hay, this bulletin _______________ -_ 15.00 1.58 2728i 37.53 6.76 11.87

Vetch hay, average (14) ............. -- 17.72 2.30 23.32! 35.94 13.18 7.53 ---.. 7

DIGESTION EXPERIMENTS WITH TEXAS HAYS AND FODDERS.

27

TABLE lil-DIGESTIBILITY OF HAYS AND FODDERS REPORTED BY VARIOUS
EXPERIMENT STATIONS. _

Nitro-
Pro- Crude gen Refer-
Description . tein . Fat . fiber . free-ex- Ash . ence
tract. N0.
Alfalfa hay 68.81 15.75 41.31 769.05 24 41 38
Alfalfa hay _ 60.69 ...... -- 47.76 56.69 45.65 2
Alfalfa hay _ 72.54 29.86 49.93 72.89 57.67 2
Alfalfa hay, first cutting _____________________ -- 80.02 44.81 43-39 76.28 49.43 l!‘
Alfalfa hay, second cutting .................. -- 79.30 49.50 45.77 75.84 55-24 26
Alfalfa hay, second cutting --..--__---------_---_ 79.63 43.32 46.23 75-53 55.35 25
Alfalfa hay, iirst cutting .................... -- 79.57 46.50 48.32 77.70 54.13 25
Alfalfa hay, second cutting ___________________ __ 79.67 41.20 44.84 24.08 56.17 27
Alfalfa hay, -____ 77.85 37.44 43.84 71.75 34.99 24
Alfalfa hay, first cutting, 10 per cent in bloom 78.52 60.00 46.10 ‘ 75.31 63.49 31
Alfalfa hay, first cutting, 50 per cent in blcom 75.14 30.30 50.44 71.99 72.05 30
Alfalfa hay, full bloom ....................... -- 76.78 51.65 50-63 75.24 60.94 31
Alfalfa hay, in bloom ........................ -_ 68.80 48.40 43.30 71.80 ...... -- 39
Alfalfa hay ‘ 70.30 50.60 45.‘70 71.80 40.90 39
Alfalfa hay 77.00 54.00 49.00 64.00 38.00 39
- Alfalfa hay, this bulletin ..................... -- 73.80 4.90 45.40 65-00 58-00 40
Alfalfa hay, average .................... --_-‘ 75.27 40.57 46.37 68.43 50.08 ------ -_
Bermuda hay 64.19 39.69 58.93 52.71 41.68 32
Bermuda hay, this bulletin ................. -_ 48.90 46.90 50.80 50-20 28.00 40
Bermuda hay, average ____________________ _- 57.50 43.30 54.86 51.45 34-84 ------ --
Buffalo grass hay 54.39 62.41 64.65 61.71 60.40 81
Bufialo grass hay, this bulletin--. ___________ __ 53.20 35.50 58.40 58.00 24.30 40
Buffalo grass hay, average _______________ .._ 53.79 48.95 61.53 59.85 15.17 ______ --
Oowpea vine, overripe, leaves fallen ........... __ 64.80 51.80 42.00 70.60 49.50 33
Gowpea vine, this bulletin .............. --...---- 72.30 28.60 51.50 65.30 11.00 40
Cowpea vine, average ...................... -_ 68.50 40.70 46.70 67.90 30.30 ______ __
Johnson -grass .._-_ 38.10 37.20 73.50 59.40 4.80 39
Johnson grass, cut when panicles were formed 44.70 99.50 57. 54.40 56.10 l9
for bloom.
Johnson grass, this bulletin -.... ............ -- 41.00 52.20 65.90 52.30 13.90 40
Johnson grass, this bulletin. ................ -- 51.80 49.30 67.60 61.00 33.40 40
Barnyard millet, late bloom ................. .._ 63.70 46.30 61.60 51.60 63.10 39
Oat tail millet, panicles just appearing----__--_ 62.60 46.10 66.50 59.10 68.40 39
Millet, this bulletin 30.26 56.40 65.10 59.30 31.30 40
Millet, average 52.19 49.60 64.40 56.70 54.30 -..-_--_
Ont hay. cut in bloom_-------_--------_--_------ 53.50 48.30 59.90 51.20 48.60 42
Oat hay, cut when grain was in milk ......... -- 58.60 62.30 50.30 55.00 31.40 42
Oat hay, grain in dough ....................... -- 44.70 64.50 49.40 59.10 41.40 42
Oat hay, part bloom, part milk .............. _- 63.60 63.60 54.50 57.50 37.70 42
Oat hay, part milk, part dough .............. __ 47.60 71.60 52.50 59.70 38.20 42
01E hay, early seed ............................ -_ 54.20 61.90 43.50 52.00 _____ __ 42
Oat hay, fair grade seeds, two-thirds grown--- 54.20 61.90 43.50 52.00 34.60 39
Oat hay. this bulletin ........................ .._ 58.50 68.90 67.80 66.80 28.40 40
Oat hay- averaflP 54.36 62.87 52.67 56.66 37.18 ....... __
Peanut vine hay, some pods and some nuts 63.30 65.90 51.50 69.50 20.40 39
with meats.
Peanut vine hay, this bulletin _________________ __ 78.60 90.00 52.40 74.30 21.30 4a
Peanut vine hay, average ................... __ 70.95 77.95 52.15 71.90 20.85 ______ __
Sorghum fodder 43.06 64.87 49.23 61.06 44.61 2
Sorghum fodder 53.37 76.72 70.78 64.09 23.35 24
Sorghum fodder, this bulletin-_----------_--..-- 31.56 53.45 66.75 64.96 33.75 40
Sorghum fodder, average _________________ __ 42.66 65.01 62.26 63,34 33.90 ______ __
Vetch ha! 61.07 68.01 58.22 70.71 159.98 36
Vetch bay, this bulletin---“-_--..-_--._---_..-__ 74.20 42.40 54.50 74.50 28.80 40
Yetch hay, average ....................... .._ 67.63 55.20 56.36 72.60 44.14 ______ __

  
 
  

28 TEXAS AGRICULTURAL EXPERIMENT STATIONS
I
TABLE 11—-REFERENOES T0 COMPOSITION AND DIGESTIBILITY OF FEEDS.
Reference
Number. Experiment station. Publicatio
1 Colorado ___________________________________________________________________ -- Bulletin 39 T
2 Colorado _________________ __ ___- _-- Bulletin 9B y:
3 New Jersey _________________________________________________________________ _- Report 18881
4 North Carolina ___________________________________________________________ __ Report 1889
5 New York (State) ___- ............. __ Bulletin 16 
6 Kentucky _____ __ __ __________________ __ Report 1888*
7 South Carolina ____ ____ __ Report 1888’
8 South Carolina _____________________ __ l Report 1888‘
9 South Carolina ___________________ __ Bulletin 3 '
10 South Carolina _______ __ ______ Bulletin 50
11 Georgia . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ Bulletin 17
12 Alabama ____________________ __ Bulletin 60 '5
13 Alabama ___________________________________ __ Bulletin 105 1
14 Alabama _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ Report 1893 \
15 Missouri ___________________________________________________________________ -_ Report 18% 
16 Mississippi _______________ __ _- Report 1888 .
17 Louisiana _________________________________________________________________ _- Bulletin 4’ 
18 Louisiana _________________________________________________________________ __ Bulletin 7 
19 Louisiana __ _______________________ __ Bulletin 19
20 Louisiana ___- ___________________ __ Bulletin 40
21 Texas _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ . _ _ _ -- Bulletin 95
22 Texas _____________________________________________________________________ -_ Report 1888
23 South Dakota _____________________________________________________________ __ Bulletin 40 ‘
24 South Dakota ____ __ _ Bulletin 114
25 Wyoming _____________________________ __ ___- Bulletin 69
26 Wyoming _____________________ __ ___- Bulletin 78
27 Wyoming
28 Massachusetts ___________________ __ __ Report 18$
29 Massachusetts ___ __________ -_ -_ Report 1898
30 Kansas ____ _- ____ Bulletin 32
31 Kansas ___ __ Bulletin 103
32 Oklahoma __________________________________________________________________ 4- Bulletin 90
33 Minnesota _ _ _ _ . _ _ _ _ _ _ . _ _ _ _ _ . _ . _ _ _ _ _ __ ___- Bulletin 99
34 Vermont __________________________________________________________________ __ Bulletin 15
35 Vermont _____________________________ ___ __ Report 1887
36 Oregon ____________________________ __ Bulletin 102
37 North Dakota Bulletin 15
38 New Mexico ___ Bulletin 17
39 Office of Experiment Stations (U. S. Department of Agriculture) ____ _- Bulletin 77
40 Texas ___ This bulletin
41 Office of Experiment Stations (U. S. Department of Agriculture) _____ _. Bulletin 11
42 Maine __ i ___ Report 1898
43 North Carolina -___- Report 1882
44 Louisiana ______ -_ Bulletin 24
45 Massachusetts __-__ ___- Report 1884
SUMMARY AND CONCLUSIONS.
1. Th1s Bulletin contains the results of 18 digestion experiments

on Texas hays and fodders. It also contains a tabulation of similar
experiments made elsewhere, and analyses of the same feeds.

2. The percentage of protein, fat, Water and ash in burr clover
decrease with the age of the plant, while the percentage of crude fiber
increases.

3. The relative values of the feeds, coefficients of digestibility, di-
gestible constituents, etc., are given in thetables.