210 RESULTS OP EXPERIMENTS IN SWINE FEEDING 



the sotir milk has, if anything, had the advantage. For very 

 young pigs sweet milk is preferable. 



Whey. — At the Ontario Agricultural College, the writer 

 conducted seven trials with a view to ascertaining the value of 

 whey for pig feeding. The average of these seven 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. 



