Chester White Chester White The Chester White is a breed of domestic pig which originated in Chester County, Pennsylvania. It was formerly known as the Chester County White. The Chester White was first developed around 1815–1818, using strains of large, white pigs common to the Northeast U.S. and a white boar imported from John Russell Duke of Bedford, Bedfordshire county, England, referred to as the Woburn breed, brought by Captain Jefferies of Liverpool, England. In 1848, two breeders at a county fair, one from Delaware County and the other from Chester County, showed their two breeds. The judge decided to use the
Black Hereford (breed) Hereford, but with black and white colouring. Like red Herefords, Black Herefords are often crossed with black Aberdeen Angus cattle to produce heterosis ("hybrid vigor") in the progeny, producing a type commonly known as the Black Baldy. The Black Herefords are usually the breeds Angus and Hereford combined. The American Black Hereford Association was established as a non-profit corporation in 1994, by the late John Gage. The first Black Herefords to qualify for registration were recorded in 1997. In 2003 the Black Hereford received international breed designation by the National Association of Animal Breeds. By 2005 the association implemented its