148 STORRS AGRICULTURAL EXPERIMENT STATION. 
SKIM MILK FOR MILCH COWS. 
REPORTED BY CC. Li BEACH AND Az BirCEARK 

Availability of nutrients of skim milk.—The constituents of 
skim milk may be regarded as wholly digestible, except when 
fed as an exclusive diet, in which case a small part may escape 
digestion. The value of skim milk in a ration, however, is 
greater than the digestible composition would indicate. For 
example, Professor Henry of the Wisconsin Experiment Sta- 
tion has shown, as the average of nineteen trials, that 475 
pounds of skim milk, when fed to pigs, is equal to 100 pounds 
of corn meal. The digestible nutrients in these amounts is shown 
in the table below. 








TABLE 67. 
Total 
: Carbo- : : 
Protein. Tigdcater Fat. | a sede 
roo Corn meal, - - eh wae AES oi GO Oya dane | 78.9 
475 Separator skim milk, : T3795 24.7 1.425 39.9 

The above indicates that one pound of digestible nutrients in 
skim milk for pig feeding is equal to two pounds of digestible 
nutrients in corn meal. ‘The superior value of the digestible 
nutrients of skim milk over those in corn meal may be ex- 
plained in part on the supposition that less energy is required 
to make the nutrients available to the animal in the former 
food than in the latter. 
Skim milk for milch cows.—The feeding value of skim milk 
in a ration for dairy cows has been reported in but few trials, 
and the practice of feeding skim milk to milch cows is not at 
allcommon. Our experience lends little encouragement to the 
practice of utilizing the by-products of the dairy as a food for 
the cow, as few can be induced to drink it. Twenty-four cows 
in the herd were offered sweet separator milk, and only four of - 




