38 
REPORT OF DEPARTMENT OF ANIMAL HUSBANDRY OF THD 
ethisig Orgente| ash, _ jProtein, | avec eet oe 
Cow 10, period 10 Grams. Grams. Grams. Grams. Grams. Grams. 
days (Feb. 4th- 
14th). 
In food........ 102388.5 96887.2 5501.8 18178.7 80078.0 3630.5 
In feces....... 28023.8  25473.1 2550.2 5114.4 19632.8 726.4 
Digested ...... 74365.2 71414.1 2951.1 8064.3 60445.7 2904.1 
Percentage di- 
PEBLCU ss ses M 72.6 fait 53.6 G12 fish: 80.0 
Haten daily, lbs. 16.4 Loa 0.7 1.8 13.3 0.6 
| Nutritive ratio 1:7.5 
Cow 2, period 4 
days (April 
14th-18th). 
In food...ece.e 48546.0 46284.2 2261.8 7768.1 36982:2 beam 
Ih feces. s..e0. 153128.6 AS87300 2598.0) 2424, Olio 30.1 
Digested. ..«.<. 0417.5 | 32553.7,, 863.8 5343.6 25706 gee iaeee 
Percentage di- 
Pestedici... as 68.8 70.3 38.2 68.8 69.5 98.0 
Eaten daily, lbs. 18.4 17.9 0.5 pa 14.2 0.8 
Nutritive ratio 1:5.6 
The several rations fed to these cows exhibit a somewhat note- 
worthy similarity of digestibility. It appears from these and 
other observations that when a ration is made in part of silage 
and contains a moderately large proportion of the high class 
grains not far from 70 per ct. of the dry matter is digested. 
In the case Cow 12 an opportunity is given to note the 
influence upon digestibility of varying the proportion of nutri- 
ents. 
The data which it is essential to consider are the following: 
EFFECT OF VARYING PROPORTIONS OF NUTRIENTS ON DIGESTIBILITY. 
Digesti- 
ble organic 
Period. CHANGES IN FOOD. 
Jan. 30 to Feb. 6... 14% Ibs. wheat 
gluten fed. 
Wheat gluten 
partly re 
placed by 
rice meal.. 
Wheat gluten 
wholly re- 
placed by 
rice meal.. 
Heb, 19 to 26.42.06 
LAE 25.201. Oye act s's 
matter 
eaten 
daily. 
Lbs. 
19.4 
19.6 
18.9 
Digesti- 
ble pro- 
tein eaten 
daily. 
Lbs, 
2.6 
2.2 
1.6 
Nutri- 
tive 
ratio. 
a A 2° 
1:8.0 
1:10.9 
Organic 
matter bide 
digestea, @eested. 
Per ct: Fer o¢. 
1.3 66.0 
70.6 60.9 
68.5 54.7 
