Poland China swine, oldest breed of swine to have originated in the United States and one of the most popular. A number of strains have contributed to the development of this breed, notably the Irish Grazier and the Berkshire. Poland Chinas, among the largest of swine, are usually black; some have white spots on different parts of the body, particularly on the feet, nose, and tail.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.