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== Rare pig breeds == | == Rare pig breeds == | ||
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==See also== | ==See also== |
Revision as of 18:34, 4 September 2007
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Domestic Pig | |
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Sow and five piglets | |
Conservation status | |
Template:StatusDomesticated | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Artiodactyla |
Family: | Suidae |
Genus: | Sus |
Species: | S. scrofa |
Subspecies: | S. s. domestica |
Trinomial name | |
Sus scrofa domestica Linnaeus, 1758 | |
Synonyms | |
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The domestic pig (Sus scrofa domestica) is normally given the scientific name Sus scrofa, though some taxonomists use the term S. domestica, reserving S. scrofa for the wild boar.. Pigs are believed to have been domesticated as early as 7,000 B.C. from wild boars in the Middle East and China. The adaptable nature and omnivorous diet of the Wild Boar allowed early humans to domesticate it much earlier than many other forms of livestock, such as cattle. . Pigs were mostly used for food, but early civilizations also used the pigs' hides for shields, bones for tools and weapons, and bristles for brushes. Pigs were brought to southeastern North America from Europe by De Soto and other early Spanish explorer. Escaped pigs became feral and were used by Native Americans as food.
Modern pigs are found across Europe, the Middle East and extend into Asia as far as Indonesia and Japan. The distinction between wild and domestic animals is slight. Most domestic pigs usually have rather sparse hair covering on their skin, but the woolly coated breeds are known and some were popular in the past. Escaped domestic pigs have become feral in many parts of the world (for example, New Zealand) and have caused substantial environmental damage.
Sus scrofa has four subspecies, each occupying distinct geographical areas:
- Sus scrofa scrofa (western Africa, Europe)
- Sus scrofa ussuricus (northern Asia and Japan)
- Sus scrofa cristatus (Asia Minor, India)
- Sus scrofa vittatus (Indonesia)
As food
The domestic pig is farmed for its meat called pork, which is obtained by slaughter. Products made of pork include sausage, bacon and ham. The head of a pig can be used to make head cheese. Liver, chitterlings, and other offal from pigs are also widely used for food. In some religions, such as Judaism and Islam, there are religious restrictions on the consumption of pork.
In industrialized nations, domestic pigs farming has shifted away from the traditional pig farm to large-scale intensive pig farms where meat can be mass-produced. This has resulted in lower production costs, but more significant animal welfare concerns.
Hog farmers refer to young female hogs who have borne less than two litters as gilts, female hogs who have borne more than two litters as sows, intact males as boars, castrated males as barrows, and young hogs of both sexes as pigs or piglets.
In developing nations, and some parts of developed nations, the domestic pig is frequently raised outdoors in yards. In some cases pigs are even raised in open fields where they are allowed to forage; they are watched by swineherds, the equivalent of shepherds for pigs.
As pets
Pigs are known to be intelligent animals and have been found to be more trainable than dogs or cats. Asian pot-bellied pigs, a smaller subspecies of the domestic pig, have made popular house pets in the United States beginning in the latter half of the 20th century. Regular domestic farmyard pigs have also been known to be kept indoors, but due to their large size and destructive tendencies, they typically need to be moved into an outdoor pen as they grow older. Most pigs also have an extreme fear of being picked up, but will usually calm down once placed back on the floor.
Breeds of pigs
Pigs are exhibited at agricultural shows, judged either as stud stock compared to the standard features of each breed, or in commercial classes where the animals are judged primarily on their suitability for slaughter to provide premium meat.
List of domestic pig breeds
Global pig stock | |
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in 2005 | |
Number in millions | |
1. China | 488.8 (50.87%) |
2. United States | 60.4 (6.29%) |
3. Brazil | 33.2 (3.46%) |
4. Vietnam | 27 (2.81%) |
5. Germany | 26.9 (2.8%) |
6. Spain | 25.3 (2.63%) |
7. Poland | 18 (1.87%) |
8. France | 15 (1.56%) |
9. Canada | 14.7 (1.53%) |
10. Mexico | 14.6 (1.52%) |
World total | 960.8 |
Source: UN Food and Agriculture Organization |
- American guinea hog a rare breed of heritage popular with modern homesteaders
- American Landrace
- American Yorkshire
- Angeln Saddleback
- Arapawa Island
- Ba Xuyen
- Bantu
- Bazna
- Beijing Black
- Belarus Black Pied
- Belgian Landrace
- Bentheim Black Pied
- Berkshire
- Black Slavonian
- Black Canarian Pig
- British Landrace
- British Lop
- Bulgarian White
- Cantonese
- Chester White
- Czech Improved White
- Danish Landrace
- Dermantsi Pied
- Duroc
- Dutch Landrace
- Fengjing
- Finnish Landrance
- French Landrace
- German Landrace
- Gloucestershire Old Spots
- Grice
- Guinea Hog
- Hampshire
- Hante
- Hereford
- Hezuo
- Iberian
- Italian Landrace
- Jinhua
- Kele
- Jeju Black Pig
- Krskopolje
- Kunekune
- Lacombe
- Large Black
- Large Black-white
- Large White
- Lithuanian Native
- Leicoma
- Mangalitsa
- Meishan
- Middle White
- Minzhu
- Mong Cai
- Mukota
- Mora Romagnola
- Moura
- Mulefoot
- Neijiang
- Ningxiang
- Norwegian Landrace
- Norwegian Yorkshire
- Ossabaw Island
- Oxford Sandy and Black
- Philippine Native
- Piétrain
- Poland China
- Red Wattle
- Saddleback
- Spots
- Swabian-Hall
- Swedish Landrace
- Tamworth
- Thuoc Nhieu
- Tibetan
- Tokyo-X
- Turopolje
- Vietnamese Potbelly
- Welsh
- Wessex Saddleback
- West French White
- Windsnyer
- Wuzishan
- Yanan
- Zungo
Rare pig breeds
See also
References
- Template:IUCN2006
- The Humane Society of the United States
- Factory Farming Photo Gallery
- Factory Pork Production