84 SWINE GEORGE E. DAY. 



mixed grains, it proved too expensive for general use, and 

 did not give as good results as did the tankage. 



Skim Milk. With the exception of whole milk, there is 

 perhaps no food better suited to pigs of all ages than skim 

 milk. It is especially beneficial in the case of young pigs, 

 and tends to promote the development of bone and muscle. 

 For fattening purposes, milk has been found to have the 

 greatest food value per loo pounds when not more than 

 three pounds of milk are used for each pound of meal. 

 Fed in this way, as low as 327 pounds of skim milk have 

 proved equal to 100 pounds of mixed meal. This is an ex- 

 ceptionally good showing, however. In Danish experi- 

 ments, it required, on an average, about 600 pounds of milk 

 to equal 100 pounds of meal; but in this case a very much 

 larger proportion of milk to meal was used than the propor- 

 tion mentioned above. In feeding skim milk, therefore, 

 the feeder must take into account the relative cost of milk 

 and meal in deciding what proportions to feed. A strong 

 point in favor of skim milk is the excellent quality of bacon 

 it produces. It tends to correct the evil influence of corn 

 when fed in conjunction with that food, and at the Ontario 

 Agricultural College, hogs fed skim milk in conjunction 

 with meal produced firm bacon though kept in comparatively 

 close confinement. The excellence of Danish bacon is no 

 doubt largely due to the fact that Denmark is a butter-mak- 

 ing country, and nearly all hogs are fed more or less skim 

 milk or buttermilk. 



Buttermilk. This product varies considerably in com- 

 position, depending upon the methods of the butter-maker. 

 In some cases, large amounts of water find their way into the 

 buttermilk tank, and consequently reduce the value of the 

 buttermilk. Where it is not diluted with water, it is prac- 

 tically equal in value to skim milk. 



Whey. Though unsuitable for very young pigs, a lim- 

 ited amount of whey gives very good results after the pigs 

 are three or four months old. The Ontario Agricultural 



