72 DISEASES OF SWINE 



seem to take well to the class of foods to which our lard types are 

 accustomed. Neither is the Large Yorkshire a good grazer on 

 American pastures. These points of objection are very serious ones 

 in the eyes of the American breeder, and, when to this we add the 

 fact that there is no great demand either from the local trade or 

 from the packers for a bacon type of hog, it is easy to see why the 

 Large Yorkshire is not a prominent animal in the Corn Belt feed 

 lots. 



In breeding, the Large Yorkshire is a prolific animal. The 

 litters are large, the dams are good milkers, and the pigs are hardy. 



Fig. 36. — Group of Large Yorkshires at "The Cedars," Columbus, Ohio. 

 (Photo by W. H. Fisher.) 



but are slow in development. They cross fairly well with other 

 breeds of early maturing qualities, and impart action, increased 

 size of litter, and hardiness. 



The Large Yorkshire is protected in this country by the 

 American Yorkshire Association, which has its headquarters in 

 the state of Minnesota. 



Middle Whites or Middle Yorkshires. — In England they recog- 

 nize a third breed of Yorkshires, which are known as the Middle 

 Whites or Middle Yorkshires. This breed is not officially recog- 

 nized in America. The breed is derived by breeding a Large 

 Yorkshire boar on Small Yorkshire sows, or by culling out 

 medium-sized animals from the Large Yorkshire herds. 



