180 



THE FEEDING OF ANIMALS 

 TABLE XLI 



Alfalfa hay, 1,169 calories X 91.6 per cent dry matter =1,071 



calories per kilogram air-dry feed. 

 Oat straw, 1,014 calories X 90.8 per cent dry matter=921 calories 



per kilogram air-dry feed. 

 Wheat bran, 1,138 calories X 88.5 per cent dry matter =1,007 



calories per kilogram air-dry feed. 



Alfalfa hay (3.5 calories X 492.9 grams digestible matter) 1,071 



calories =654 calories per kilogram =29.7 therms per 100 



pounds air-dry feed. 

 Oat straw (3.5 calories X 406 grams digestible matter) 921 



calories =500 calories per kilogram =22.7 therms per 100 



pounds air-dry feed. 

 Wheat bran (3.9 calories X 561.1 grams digestible matter) 1,007 



calories =1,181 calories per kilogram =53.6 therms per 100 



pounds air-dry feed. 



These methods of ascertaining net values of feeds may 

 be regarded as complex, but they are unquestionably 

 the most accurate of any methods so far developed. 



The results of Armsby and Fries and Kellner do not 

 accord with a somewhat widespread teaching that the 

 energy expended in the consumption of coarse feeds is 

 greatly more for a unit of dry matter than is the case with 

 the concentrates. It is conceded, of course, that the 

 energy expended in the mechanical work of mastication 

 must be greater in the coarse foods than in the grain 



