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Boar–pig hybrid is a hybridized offspring of a cross between the Eurasian wild boar (Sus scrofa scrofa) and any domestic pig (Sus scrofa domesticus). Feral hybrids exist throughout Eurasia , the Americas , Australia, and in other places where European settlers imported wild boars to use as game animals .
A feral pig is a domestic pig which has gone feral, meaning it lives in the wild. The term feral pig has also been applied to wild boars, which can interbreed with domestic pigs. [1] They are found mostly in the Americas and Australia. Razorback and wild hog are sometimes used in the United States in reference to feral pigs or boar–pig hybrids.
The wild boar (Sus scrofa), also known as the wild swine, [4] common wild pig, [5] Eurasian wild pig, [6] or simply wild pig, [7] is a suid native to much of Eurasia and North Africa, and has been introduced to the Americas and Oceania.
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
Gestation crates, used on modern pig-production facilities, commonly referred to as factory farms. A gestation crate, also known as a sow stall, is a metal enclosure in which a farmed sow used for breeding may be kept during pregnancy. [1] [2] [3] A standard crate measures 6.6 ft x 2.0 ft (2 m x 60 cm). [4] [5]
It is a large pig, heavy-jowled, lop-eared and short-legged. [3]: 193 It is among the heaviest of pig breeds: sows average some 240 kg, boars about 50 kg more. [4] The heaviest pig on record is a Poland China named Big Bill, who in Tennessee in 1933 was found to weigh 1158 kg (2552 lb), with a length of about 2.75 m (9 ft). [3]: 173
The American Berkshire Association, established in 1875, was the first breed society for a pig breed; [5]: 551 the first pig registered was a boar named Ace of Spades, reportedly bred by Queen Victoria. [9] The pigs were exported to Japan in the 1860s, and became numerous there: in 2007 there were over 330 000. [10]
[7]: 235 In 1985 a breed association, the Oxford Sandy and Black Pig Society, was set up and a herd-book was published for the first time; it listed 62 sows and 15 boars, held by 29 different breeders. [4] [8] [9] The breed was recognised in 2003 by the British Pig Association, which then took over herd-book registration. [8]