218 FARM ANIMALS 



versity the most profitable gains in pigs were made 

 when skim milk and corn meal were fed in the pro- 

 portion of one to three. Various other tests were 

 made, however, during subsequent years and it 

 has been found that a considerable variation may 

 prevail in this respect. Thus, corn meal may be 

 economically fed with from three to eight times 

 its weight of skim milk. It is ordinarily safe to 

 feed skim milk in as great a quantity as the pigs 

 will readily consume. Wherever attention has 

 been given to determining the actual feeding 

 value of skim milk in the northern central states it 

 has been found that it is worth fifteen cents or more 

 per one hundred pounds in the production of 

 pork. The more skim milk pigs will eat readily 

 the more grain can be saved in compounding 

 the ration and for this reason the more economic 

 is pork production under the circumstances. Skim 

 milk may not only be fed with corn meal, but with 

 any grain ration such as a mixture of corn and 

 wheat meal, soy-bean meal, linseed meal, gluten 

 meal, or animal feeds. In a series of tests in 

 which skim milk was fed in amounts varying from 

 three to twelve pounds for each pound of corn 

 meal or mixture of corn and other meal, it was 

 found that the gain per head per day on corn 

 meal alone was one-third the gain of pigs which 

 received skim milk, corn meal and wheat meal, 

 while the cost of each pound of gain was much 

 higher on the exclusive corn meal ration and the 

 profit about one-seventh of that obtained from 

 the skim milk and meal ration. As already in- 

 dicated the consumption of skim milk reduces the 

 amount of grain necessary, so that the economy 

 of production is much greater. Rations contain- 

 ing skim milk have been fed to pigs throughout 



