42 



PRINCIPLES OF FEEDING FARM ANIMALS 



fluids of the animals and taken into circulation. This portion 

 does not contribute to the maintenance or the growth of the body, 

 and is of value to the animal only in so far as the heat generated 

 by the fermentation processes helps to maintain an even body 

 temperature. In spite of these errors to which digestion trials 



10 20 30 



COTTON-SOT MEAL 



LINSEED MEAL 



SOYBEANS 



DRIED BREWERS' GRAIN 



GLUTEN FEED 



COW PEAS 



WHEAT BRAN 



ALFALFA HAY 



WHEAT MIDDLINGS 



RED CLOVER HAY 



OAT5 



RYE 



BARLEY 



INDIAN CORN 



DRIED BEET PULP 



TIMOTHY HAY 



CORN STALKS 



OAT STRAW 



SKIM MILK 



COWS' MILK 



PASTURE GRASS 



MANGELS 



RAPE 



TURNIPS 



CORN 5ILAGE 



) NUTRITIVE RATIO 

 UI.2. 

 1.5 

 1.8 

 2.3 

 2.4 

 3.1 

 4.0 

 4.3 

 4.6 

 5.9 

 6.2 

 78 

 8.0 

 9.9 

 11.9 

 16.2 

 23.6 

 383 

 2.0 

 38 

 4.5 

 4.9 

 4.3 

 7-7 

 120 



PROTEIN 



CARBOHYDRATES AND FAT 



FIG. 8. Digestible components and nutritive ratios of common feeds, in per cent. 



are subject, the results obtained by them are of the greatest value 

 to both the feeder and the student of nutrition problems. Until 

 the latter part of the last century, our theories of these problems 

 and the science of animal nutrition rested almost wholly on the 

 knowledge of the feeding stuffs gained through chemical analysis 

 and digestion trials. 



