Search results
Results From The WOW.Com Content Network
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]
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.
For instance, in 2002, the state of Florida passed an amendment to the state's constitution banning the confinement of pregnant pigs in gestation crates. [73] As a source for comparison, the use of battery cages for egg-laying hens and battery cage breeding methods have been completely outlawed in the European Union since 2012.
This is a collection of lists of mammal gestation period estimated by experts in their fields. The mammals included are only viviparous (marsupials and placentals) as some mammals, which are monotremes (including platypuses and echidnas) lay their eggs. A marsupial has a short gestation period, typically shorter than placental.
However, grower pigs – which comprise the bulk of the herd – are usually housed in alternative indoor housing, such as batch pens. During pregnancy, the use of a stall may be preferred as it facilitates feed-management and growth control. It also prevents pig aggression (e.g. tail biting, ear biting, vulva biting, food stealing).
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.
As of 2011, pigs used commercially in the UK and Europe had an FCR, calculated using weight gain, of about 1 as piglets and ending about 3 at time of slaughter. [5] As of 2012 [update] in Australia and using dressed weight for the output, a FCR calculated using weight of dressed meat of 4.5 was fair, 4.0 was considered "good", and 3.8, "very good".
The north Sulawesi babirusa reach sexual maturity when they are 5–10 months old. Their estrous cycle is 28–42 days, and the gestation period lasts 150–157 days. The females have two rows of teats and will give birth to 1–2 piglets weighing 380–1,050 grams (15–35 oz) and measuring 15–20 cm (6–8 inches), which they will nurse ...