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 



(0 20 



COTTON-SOT MEAL 

 LINSEED MEAL 

 SOYBEANS 

 DRIED BREWERS' G 

 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 GRA55 

 MANGELS 

 RAPE 

 TURNIPS 

 CORN SILAGE 



PROTEIN Wm 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, 



