PRINCIPLES OF STOCK FEEDING 193 



part of the crude protein. The remaining digestible 

 protein is digested in the intestines. Fats and oils are 

 mainly digested in the small intestine. 



COMPOUNDING OF RATIONS 

 Agricultural investigators can not hope to attain to 

 mathematically exact results. Food constituents vary 

 from sample to sample; digestive power varies from 

 animal to animal. These variations, however, are not 

 great, and hence not serious as disturbing factors. The 

 farmer must concern himself with average results to 

 meet individual conditions and requirements. 



TABLE I. AVERAGE DIGESTIBLE NUTRIENTS IN 

 AMERICAN FEEDING STUFFS 



The following table of average digestible nutrients 

 is reproduced by permission from that valuable work, 

 "Feeds and Feeding," by Dean and Director W. A. 

 Henry of the Wisconsin Experiment Station. 



Name of feed 



Dry 

 matter 

 in 100 

 pounds 



Digestible nutrients 

 in 100 pounds 



Protein 



Carbo- 

 hy- 

 drates 



Ether 

 extract 



Fertilizing constituents 

 in 1000 pounds. 



Nitro- 

 gen 



Phos- 

 phoric 

 acid 



Potash 



Concentrates 

 Corn, all analyses. 



Bent corn 



Flint corn 



Sweet corn 



Corn cob 



Corn and cob meal 



Corn bran 



Gluten meal 



Germ meal 



Starch refuse 



Grano-gluten 



Hominy chops. . . . 



Glucose meal 



Sugar meal 



Starch feed, wet. . 



Wheat 



High-grade flour. . 

 Low-grade flour . . 



Lbs. 



89.1 

 89.4 

 88.7 

 91.2 

 89.3 

 84.9 

 90.9 

 91.8 

 89.6 

 91 8 

 94.3 

 88.9 

 91.9 

 93.2 

 34.6 



89.5 

 87.6 

 87.6 



Lbs. 



7,9 



7.8 



8.0 



8.8 



0.4 



4.4 



7.4 



25.8 



9.0 



11.4 



26.7 



7.5 



30.3 



18.7 



5.5 



10.2 

 8.9 

 8.2 



Lbs. 

 66.7 

 66.7 

 66.2 

 63.7 

 52.5 

 60.0 

 59.8 

 43.3 

 61.2 

 58.4 

 38.8 

 55.2 

 35.3 

 51.7 

 21.7 



69.2 

 62.4 

 62.7 



Lbs. 

 4.3 

 4.3 

 4.3 

 7.0 

 0.3 

 2.9 

 4.6 



11.0 

 6.2 

 6.5 



12.4 

 6.8 



14.5 

 8.7 

 2.3 



1.7 



0.9 

 0.9 



Lbs. 

 18.2 

 16.5 

 16.8 

 18.6 

 5.0 

 14.1 

 16.3 

 50.3 



23.6 

 18.9 

 28.9 



Lbs. 

 7.0 



0.6 



5.7 



12.1 



3.3 



8.0 

 7.0 

 5.1 

 9.8 



i'.i 



1.0 



7.9 

 2.2 

 5.6 



Lbs. 

 4.0 



6.0 

 4.7 

 6.8 

 0.5 

 5.0 

 5.2 

 1.5 

 4.9 



6.3 

 1.0 



"»■ 



5.0 

 1.5 

 3.5 



