S8 Report of Department of Animal Husbandry of thb 



Dry sub- Organic .:», PrntPln Carbohy- Ether 



stance. matter. x-roxem. drates. extract 



Cow 10, period 10 Grams. -Orams. Grains. Grams, Grams, Grama. 



(lays (Feb. 4th- 

 14ih). 



In food 102.-188.5 96887.2 5501.3 13178.7 80078.0 3630.5 



In feces 28023.3 25473.1 2550.2 5114.4 19632.3 726.4 



Digested 74365.2 71414.1 2951.1 8064. 3 60445.7 2904.1 



Percentage di- 

 gested 72.6 73.7 53.6 61.2 75.5 80.0 



Eaten daily, lbs. 16.4 15.7 0.7 1.8 13.3 0.6 



Kutritive ratio 1:7.5 

 Cow 2, period 4 

 days (April 

 14th-18th). 



In food 48546.0 462S4.2 2261.8 7768.1 36982.2 1533.9 



In feces 15128.5 13730.5 1398.0 2424.5 11275.9 30.1 



Digested 33417.5 32553.7 863.8 5343.6 25706.3 1503.8 



Percentage di- 

 gested 68.8 70.3 38.2 68.8 69.5 98.0 



Eaten daily, lbs. 18.4 17.9 0.5 2.9 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 PnoroRxiONS of Nutjjients on Digestibility. 



bleorgiinlc H,'5nr*i Nutri- Organic „. ,„,„ 



Period. CHANGES IX FOOD, matter .if„iT,™ live matter i!'<"^'" 



eatea ^Zn% '''"°- digested. •^'«^^"^<1- 

 dally. '^^"y- 



Jan. 30 to Feb. 6... U^ lbs. wheat Lbs. zbs. r,;rt. rer ^^ 



gluten fed. 19.4 2.6 1:6.5 71.3 66Vo 



Feb. 19 to 26 Wheat gluten 



partly re- 

 placed by 

 rice meal.. 19.6 2.2 1:8.0 70,6 GO. 9 



Mar. 8 to 10 Wheat gluten 



wholly re- 

 placed by 

 rice meal.. IS. 9 l.G 1:10.9 68.5 54.7 



