Diseases of swine : with particluar reference to hog-cholera / by Charles F. Lynch. With a chapter on castration and spaying / by George R. White.

  • Lynch, Charles, 1868-1937.
Date:
1914
Catalogue details

Licence: In copyright

Credit: Diseases of swine : with particluar reference to hog-cholera / by Charles F. Lynch. With a chapter on castration and spaying / by George R. White. Source: Wellcome Collection.

    74/760 (page 72)
    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 ^ orkshire herds.