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The Chester White is the most durable of the white breeds; it can gain as much as 1.36 pounds (0.62 kg) a day and gain 1 pound (0.45 kg) for every 3 pounds (1.4 kg) of grain it is fed. Their pale color leaves Chester Whites prone to sunburn; they must be given access to shade in the summer.
This is a list of pig breeds usually considered to originate or have developed in Canada and the United States. Some may have complex or obscure histories, so inclusion here does not necessarily imply that a breed is predominantly or exclusively from those countries.
The breed grew in numbers into the mid-twentieth century, [7]: 198 particularly in Iowa, Illinois and Indiana, but from the 1960s, with the move of commercial pork operations to the modern system of three-way cross-breeding using American Yorkshire, Duroc and Hampshire, population numbers fell sharply. [4]: 611
Breed Origin Height Weight Color Image Aksai Black Pied: Kazakhstan: 167–182 cm: 240–320 kg (530–710 lb) Black and White--- American Yorkshire: United States
Wallowing in mud. The American Yorkshire is an American breed of large domestic pig.It is the most numerous pig breed in the United States. [3]: 14 It derives from pigs of the British Large White or Yorkshire breed imported from the United Kingdom or from Canada at various times from about 1830 to the mid-twentieth century.
The Large White derives from the old Large Yorkshire breed, a long-legged and heavy-boned pig from the county of Yorkshire, in northern England.In the nineteenth century this was crossed with pigs imported from China, giving rise to three distinct types or breeds: the Small White showed the greatest Asian influence, small and fat with a markedly foreshortened snout; the Middle White also ...
The development of the breed began in 1947 with crosses of Berkshire sows to boars of Danish Landrace and Chester White ancestry. The goal was to produce a pig that would be appropriate for crossing with the Yorkshire, the dominant breed in Canada at the time. The Lacombe was eventually unveiled to pork producers in 1957, and quickly grew to be ...
The site covers more than 3 acres and extends 30 feet down into the alluvial deposits of the Illinois River valley. Over the course of its excavation between 1969 and 1978, Koster produced deeply buried evidence of ancient human occupation from the early Archaic period (BC 7500) to the Mississippian period (AD 1000).