1911. 



PUBLIC DOCUMENT — No. 31. 



117 



ble matter as the low-protein cows. The amount of food fed 

 daily to each cow was ganged partly by the appetite of the 

 animal. The high-protein cows received only .44 of a pound 

 more digestible protein than the other herd. 



Influence of Eations on Weight (Pounds). 



The cows receiving the low-protein ration gained rather more 

 in weight than the other herd ; whether this was due to the 

 character of the ration, or whether it simply depended upon 

 the individuality of the animal, it is difficult to say. 



Tnie^ Protein Balance (Pounds). 



The high-protein cows received an average of 28 per cent, 

 of protein over maintenance and milk requirements, while in 

 case of the low-protein cows the percentage varied from an 

 actual shortage of 4.5 per cent, to a surplus of 10.5 per cent. 



' Amines were determined and deducted from the total protein, the above results being ex- 

 pressed as tru-^ albuminoids. 



