FATTENING 



245 



The table shows that the heavier hogs made more rapid 

 gains and consumed less feed per 100 pounds of their live 

 weight, but there was a steady increase in the amount of feed 

 required for 100 pounds gain as fattening advanced. (See 

 Fig. 54.) 



A similar result was obtained at the Ontario Agricultural 

 College with 36 pure-bred pigs of different breeds, as shown by 

 the following table: 



These figures, together with others that might be given, 

 show very clearly that the cost of production steadily increases 

 as the hogs become older. 



Correctives. — Swine appear to have a craving for what 

 might be called " unnatural " substances. This is especially 

 true of hogs which are kept in confinement, which will eat 

 greedily such substances as charcoal, ashes, mortar, soft coal, 

 and rotten wood. It is probable that some of these substances 



