Berkshire swine bûrk´shər, bärk´–, –shĭr [key], one of the oldest of the improved breeds of swine, originating in the county of Berkshire in S central England. The breed was imported to the United States in large numbers between 1830 and 1850 and has adapted itself to all parts of the country. Berkshires are of medium size, generally smooth, and somewhat longer in proportion to depth than other breeds. Their ears stand erect, their noses are short, and their color is black with white feet, nose, and tail.
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