THE FAT OR LARD BREEDS OF SWINE 431 



trict with good results. Later, it is stated, white Chinese 

 pigs were imported to Chester county and crossed on the 

 native pigs. Eventually the different strains of blood 

 were combined, and from this combination came the original 

 Chester-White breed. 



(2) Todd's Improved Chester-White has a somewhat 

 complicated history. About 1827, Norfolk Thin Rind 

 pigs were imported from England to Connecticut. Two 

 brothers, named Todd, bought a boar of this breed, and a 

 sow of what was called the Grass breed, and took them 

 to Ohio, where they were bred together with considerable 

 success. Later, a Joseph Haskins brought to Ohio a boar 

 of the Byfield breed, and a sow similar to the original 

 Todd sow. The Todd and Haskins pigs were freely bred 

 together. Isaac Todd also used other boars in his herd, 

 one of which was said to have been of the large Grass 

 breed, and another was called a Normandy boar; little 

 is known of the breeding of either. Both of these boars 

 were white in color. In 1865, Isaac Todd introduced 

 Chester-White blood. His son, S. H. Todd, made further 

 use of the Chester-White, and by careful breeding and 

 selection evolved what is known as Todd's Improved 

 Chester-White. 



(3) The Ohio Improved Chester-White is the product of 

 the efforts of L. B. Silver, of Ohio, who, in 1865, began 

 breeding Chester-Whites, and who aimed to produce a 

 superior type through selection. 



525. Description. Some years ago, the Chester- White 

 was rated as the largest breed in the United States, but 

 modern methods of breeding have decreased the size and 

 produced an animal of more quality than the original type. 

 As bred at present, the Chester-White may be ranked as of 

 medium size, or about the same as the Poland-China. 



