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Originally, the Duroc was a very large pig, but not as large as was the Jersey Red. Today, it is a medium-sized breed with a moderately long body and a slightly dished face. The ears are drooping and not held erect. The color is often an orangish-brown, but ranges from a light-golden shade to a deep mahogany-red. [1]
Duroc boars are bred with Large White Italiana or Italian Landrace sows, or more frequently with hybrid sows from those two breeds. The pigs are usually farmed intensively and are slaughtered at a weight of 160–170 kg ; the meat is almost all used to make preserved meat products such as Parma ham and prosciutto di San Daniele .
The term Landrace pig, or Landrace swine, refers to any of a group of standardized breeds of domestic pig, and in this context, the word "Landrace" is typically capitalized. The original breed by this name was the Danish Landrace pig , from which the others were derived through development and crossbreeding.
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
H. Kiessling added in 1912 that a landrace is a mixture of phenotypic forms despite relative outward uniformity, and a great adaptability to its natural and human environment. [7] The word landrace entered non-academic English in the early 1930s, by way of the Danish Landrace pig, a particular breed of lop-eared swine. [14]
The American Landrace is a long, lean, white pig with 16 or 17 ribs. The head is long and narrow, the ears are large and heavy and hang forward close to the snout. The back is only slightly arched or is nearly flat. The side is even and well-fleshed and the ham is plump but not over-fat.
The British Landrace is a British domestic breed of pig and one of the most popular in the United Kingdom. [1] It is pink with heavy drooping ears that cover most of the face and is bred for pork and bacon. [2] The breed originated in the 1949 importation of 12 landrace pigs from Scandinavia — four boars and eight gilts (immature females). [1]
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