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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.
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.
In this system, grower pigs are housed indoors in group-housing or straw-lined sheds, whilst pregnant sows are confined in sow stalls (gestation crates) and give birth in farrowing crates. [citation needed] The use of sow stalls has resulted in lower production costs and concomitant animal welfare concerns.
Pigs are extensively farmed, and therefore the terminology is well developed: Pig, hog, or swine, the species as a whole, or any member of it. The singular of "swine" is the same as the plural. Shoat (or shote), piglet, or (where the species is called "hog") pig, unweaned young pig, or any immature pig [23] Sucker, a pig between birth and weaning
The pig (Sus domesticus), also called swine (pl.: swine) or hog, is an omnivorous, domesticated, even-toed, hoofed mammal. It is named the domestic pig when distinguishing it from other members of the genus Sus. It is considered a subspecies of Sus scrofa (the wild boar or Eurasian boar) by some authorities, but as a distinct species by others.
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Canterbury is by far the largest pig-farming region with 161,600 pigs, 63.1% of the national population. [20] Pigs are usually kept indoors, either in gestation crates, farrowing crates, fattening pens, or group housing. [35] In the 12 months to December 2020, 636,700 pigs were processed, producing 44,950 tonnes of meat. [32]
When pregnancy is confirmed, they are moved to pens within a group-housing system [6] for about 10 weeks, then to a farrowing crate, then back to a gestation crate to be impregnated again. [ 70 ] [ 71 ] It uses two forms of group housing: in one system, 30–40 sows are kept in a pen with access to individual gestation crates; in the other ...