DAIRY BY-PRODUCTS 281 



and valuing veal at 7 cents a pound, skim-milk is worth 

 35 cents per 100 pounds for veal production. 



The highest returns from the feeding of skim-milk 

 are secured when fed to poultry. Careful experimental 

 tests show that as high as 75 cents per 100 pounds may 

 be realized for skim-milk when fed to poultry 



Skim=milk as a Fertilizer. Many who are selling 

 the skim-milk off the farm do not sufficiently appreciate 

 the fertilizing value of this material. At the lowest esti- 

 mate skim-milk has a fertilizing value of ten cents per 

 hundred pounds. 



Buttermilk as a Feed. Buttermilk has essentially 

 the same composition as skim-milk. It contains a little 

 more fat, but less sugar, part of which has been changed 

 into lactic acid. For pig feeding, except in the case 

 of very young pigs, it has practically the same feeding 

 value as skim-milk, as shown by numerous feeding ex- 

 periments. It is also a good poultry feed. It can not be 

 recommended, however, for calf feeding, though it has 

 been used with fair success in some instances. 



Whey as a Feed. Whey when properly cared for has 

 practically one-half the feeding value of skim-milk. 



