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Dutch Landrace sows are the bulk of the female stock for a standardized three-way cross, the Dutch Yorkshire pig, a 3/4 Large White (a.k.a. Yorkshire) and 1/4 Dutch Landrace mix, developed with "great stress on production detail", by the following breeding formula: Large White boar × (Large White boar × Dutch Landrace) sow. [1]
The initial emergence of wild pigs, followed by the genetic divergence between boars and pigs and the domestication of pigs [20] Archaeological evidence shows that pigs were domesticated from wild boar in the Near East in or around the Tigris Basin, [ 21 ] being managed in a semi-wild state much as they are managed by some modern New Guineans ...
Large White piglets on a farm A Large White sow suckling her piglets Interior of pig farm at Bjärka-Säby Castle, Sweden, 1911. Pig farming, pork farming, pig production or hog farming is the raising and breeding of domestic pigs as livestock, and is a branch of animal husbandry. Pigs are farmed principally for food (e.g. pork: bacon, ham ...
[6] [7] A few days before giving birth, sows are moved to farrowing crates where they are able to lie down, with an attached crate from which their piglets can nurse. There were 5.36 million breeding sows in the United States as of 2016, out of a total of 50.1 million pigs. [8] Most pregnant sows in the US are kept in gestation crates. [1]
Boar is sometimes used specifically to refer to males, and may also be used to refer to male domesticated pigs, especially breeding males that have not been castrated. [ 14 ] [ 15 ] Sow , the traditional name for a female, again comes from Old English and Germanic; it stems from Proto-Indo-European , and is related to the Latin sus and Ancient ...
close-up. Adult bushpigs stand from 66 to 100 cm (26 to 39 in) at the shoulder, [4] and mature boars can reach a weight of 150 kg (330 lb), although 60 to 80 kg (130 to 180 lb) is more common. [4] [5] Sows are 45 to 70 kg (99 to 154 lb). [5] They resemble the domestic pig, and can be identified by their pointed, tufted ears and face mask.
In 1896 the Danish government drew up a national plan for pig production, under which the Large White x Jutland hybrid would become a new breed, the Danish Landrace. [3]: 587 A herd-book published in 1906 listed 126 boars born from 1893 to 1904; [3]: 587 some 60% of them were from Jutland, 21% from Fyn and 10% from Zealand. Performance testing ...
Intensive pig farming, also known as pig factory farming, is the primary method of pig production, in which grower pigs are housed indoors in group-housing or straw-lined sheds in establishments also known as piggeries, whilst pregnant sows are housed in gestation crates or pens and give birth in farrowing crates.