220 



FOOD REQUIRED 



[chap. 



2-13 lb., and would contain 1-02 lb. protein. Thus the 

 two would together have a starch equivalent of 

 1-85 4-2-13 = 3-98, and would contain -22+ i-02= 1-24 lb. 

 protein, or the fattening value of the ration has been 

 increased a trifle, while the amount of protein remains 

 the same, so that probably \ lb. could be taken off the 

 barley meal, as the amount of protein is already pretty 

 high. 



Dairy cows were receiving 



Beans 



Oats 



Linseed Cake 



Bran 



Straw Chaff 



Hay 



Straw 



Lb. 

 4 

 3 

 2 



4 

 5 

 6 

 6 



and it was desirable to substitute gluten meal and maize 

 as much as possible for the other concentrated foods, 

 which had become dear. We may calculate as 

 follows : — 



Thus we have to make up 6- 1 lb. of starch equivalent 

 and 1-5 lb. of protein. Gluten meal has a starch 

 equivalent of ^J and 33 per cent, of digestible protein ; 

 maize has a starch equivalent of 84, but only 7 per cent- 

 of digestible protein ; thus rather a smaller weight of 



