268 



THE FEEDING OF ANIMALS 



362. Milk of several breeds. The milk of the cow 

 varies with the breed, the individual, and the period of 

 lactation, and in its use for feeding purposes these varia- 

 tions should be considered. 



TABLE LV 



*Assumed. 



tCalculated. 



While we have few or no data on the subject, it is 

 probable that the same causes operate in affecting the 

 milk of all species. 



363. Dairy by-products. These by-products are three 

 in number, skim-milk, both from the gravity and the 

 separator processes, buttermilk, and whey. Their aver- 

 age composition, as taken from compilations by several 

 authors, is as follows: 



TABLE LVI. COMPOSITION OP DAIRY OFFALS (PER CENT) 



*Probably includes the lactic acid, f-80 per cent lactic also present. Assumed. 



