210 RESULTS OF EXPERIMENTS IN SWINE FEEDING 
the sora milk has, if anything, had the advantage. For very 
young pigs sweet milk is preferable. 
Whey.—At the Ontario Agricultural College, the writer 
condueted seven trials with a view to ascertaining the value of 
whey for pig feeding, The average of these scven trials gives 
744.5 pounds of whey equivalent to 100 pounds of meal. 
Two trials at the Wisconsin Experiment Station give an 
average of 800 pounds of whey equivalent to 100 pounds of 
meal, 
These trials probably show the maximum value of whey for 
pig feeding. Under ordinary methods of feeding, it would 
hardly be safe to expect quite as good returns for whey. Where 
labor is involved in procuring the whey, due allowance must 
be made in estimating the value of this product. : 
Sweet vs. Sour Whey.—Five trials made by the writer 
failed to show any appreciable difference between the feeding 
value of sweet and sour whey. 
Separated vs. Ordinary Whey.—In an experiment con- 
ducted by the writer, ordinary whey proved to be worth twenty- 
five per cent more than separated whey. The separated whey 
had been run through the cream separator to remove the fat 
for making whey butter. 
Buttermilk.—Experiments at the Ontario Agricultural 
College and elsewhere show that buttermilk is practically equal 
to skim-milk for feeding pigs. 
Substitutes for Skim-Milk.—For young pigs just after 
weaning, it is difficult to find anything that will take the place 
of skim-milk. When skim-milk is not available, there is danger 
of the pigs becoming stunted at this period of their life, 
especially pigs that are weaned young. The Ontario Agricul- 
tural College conducted two trials with Swift’s digester tank- 
age and blood meal as substitutes for skim-milk. These two 
feeds proved nearly equal in value, and, since the tankage costs 
much less per ton, it was regarded as the more satisfactory. 
