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The '''Large Black''', occasionally called the Devon or Cornwall Black, is a breed of ] native to ], particularly ], ] and ]. The Large Black is accurately named, as it is a large swine breed and is the only British pig that is entirely black. It is a hardy and docile pig, with Large Black ] known for having large ]s. The '''Large Black''', occasionally called the Devon or Cornwall Black, is a breed of ] native to ], particularly ], ] and ]. The Large Black is accurately named, as it is a large swine breed and is the only British pig that is entirely black. It is a hardy and docile pig, with Large Black ] also known for having large ]s.


The Large Black combined local black pig breeds from the ] and the ]; the Large Black Pig Society was formed in 1899. The breed was popular in the early 1900s and was exported to many areas of the world. Population numbers declined after the ] as farmers turned to breeds more suitable to ], and by the 1960s the breed was almost extinct. Numbers have slowly risen, but it is still considered vulnerable by the ], the ], and ]. There were originally two types of black pigs, one from East Anglia and Essex and one from Devon and Cornwall. With the founding of a ] in 1898, variations between the two types decreased. The Large Black was popular in the early 1900s and was exported to many areas of the world. Population numbers declined after the ] as farmers turned to breeds more suitable to ], and by the 1960s the breed was almost extinct. Numbers have slowly risen, but it is still considered vulnerable by the ], the ], and ].


== History == == History ==
The Large Black resulted from the amalgamation of black pigs from two geographically separate areas, ] and ] in the south-west of England, and ], ] and ] in the east.<ref name="RB"/><ref name=case>{{cite book| title= Beautiful Pigs: portraits of fine breeds | date =2009 | author = Case, Andy | url= http://books.google.com/books?id=UPJ4AaB4vkEC | page= 36 | publisher= London: Frances Lincoln}}</ref> The pigs from eastern England, mainly Essex, were influenced by importations from China in the late 18th century, while those from Devon and Cornwall were probably more closely related to the pigs in mainland Europe, particularly France.<ref name="RB">{{cite book | title=Rare Breeds | author=Alderson, Lawrence. |url= http://books.google.com/books?id=_3HZzMeMo_0C| year=2001 | publisher=Princes Risborough: Shire Publications |edition=4th| isbn= 0747805113|pages=27-28}}</ref> The Devon pigs were originally selected for "the length of their bodies, ears, noses, tail and hair, the longer the better, without reference to quality or substance", but selective breeding brought improvements to the breed, and by 1850 the type was small-boned and thick-bodied, with good conformation and constitution.<ref name=Plumb>{{cite book|url=http://books.google.com/books?id=GbxBAAAAIAAJ&pg=PA762&dq=Large+Black+pig&hl=en&sa=X&ei=fWHuTpiDPIrZiALF7JmABA&ved=0CDMQ6AEwAA#v=onepage&q=Large%20Black%20pig&f=false| title=Types and Breeds of Farm Animals|author=Plumb, Charles Sumner|page=762|publisher=Ginn|date=1920|series=Country life education}}</ref> Alternative origins proposed for the black colour of the breed are black Guinea hogs imported from Africa (similar to the ] of the US) or from ] pigs.<ref name=Dohner>{{cite book|author=Janet Vorwald Dohner|title=The encyclopedia of historic and endangered livestock and poultry breeds|year=2001|publisher=Yale University Press|isbn=9780300088809|pages=189–190}}</ref> The Large Black resulted from the amalgamation of black pigs from south-west England and those of ],<ref name="RB"/> with the latter sometimes being called the "Small Black".<ref name=RBST>{{cite web|url=http://www.rbst.org.uk/watch-list/pigs/largeblack|title= Pigs - Large Black|publisher=Rare Breeds Survival Trust|accessdate=2011-08-22}}</ref> The pigs from East Anglia, mainly ], were strongly influenced by importations from China in the late 18th century, while those from ] and ] were probably much more closely related to the pigs on mainland Europe, particularly France.<ref name="RB">{{cite book | title=Rare Breeds | author=Alderson, R. | year=1994 | publisher=Laurence King Publishing | isbn=1856690520|pages=27-28}}</ref> Alternative origins proposed for the black colour of the breed are black Guinea hogs imported from Africa (similar to the ] of the U.S.) or from ] pigs.<ref name=Dohner>{{cite book|author=Janet Vorwald Dohner|title=The encyclopedia of historic and endangered livestock and poultry breeds|year=2001|publisher=Yale University Press|isbn=9780300088809|pages=189–190}}</ref>

The Devon pigs were originally selected for "the length of their bodies, ears, noses, tail and hair, the longer the better, without reference to quality or substance," but selective breeding brought improvements to the breed, and by 1850 the type was small-boned and thick-bodied, with good conformation and constitution.<ref name=Plumb>{{cite book|url=http://books.google.com/books?id=GbxBAAAAIAAJ&pg=PA762&dq=Large+Black+pig&hl=en&sa=X&ei=fWHuTpiDPIrZiALF7JmABA&ved=0CDMQ6AEwAA#v=onepage&q=Large%20Black%20pig&f=false|title=Types and Breeds of Farm Animals|author=Plumb, Charles Sumner|page=762|publisher=Ginn|date=1920|series=Country life education}}</ref> The two types were very distinct by the late 1880s, but after the founding of the breed association, breeding stock was increasingly exchanged between the two regions, and variations decreased.<ref name=PigAssociation/>


] ]
During the late 19th century, the Large Black grew enormously in popularity. In 1899, a ], the Large Black Pig Society, was formed. By 1900, Large Blacks were one of the most popular and numerous English pig breeds. In the early 1900s, the Large Black was exported to mainland Europe, North and South America, Africa and Oceania. The first American imports were in the 1920s, but the population dwindled to the point where imports were again necessary in 1985.<ref name=Dohner/> Popularity of the breed peaked in the 1920s, however, and after World War II, population numbers declined as farmers began to favour pig breeds that would do well in intensive indoor farming.<ref name=ALBC/> The breed association was merged with the National Pig Breeders Association (later the British Pig Association) in 1949.<ref>{{cite web|url=http://www.largeblackpigs.co.uk/|title=Breed History|publisher=Large Black Pigbreeders Club|accessdate=2011-12-18}}</ref> During the 1960s the breed almost became extinct, and in 1973 it was placed on the British ] endangered livestock list.<ref name=ALBC>{{cite web|url=http://albc-usa.org/cpl/largeblack.html|title=Large Black Pig|publisher=American Livestock Breeds Conservancy|accessdate=2011-08-22}}</ref>
During the late 19th century, the Large Black grew in popularity.{{Citation needed|date=February 2012}} A ], the Large Black Pig Society, was formed in 1898 or 1899,<ref name=miller>{{cite web|url= http://www.rbta.org/lgeblack.htm | title= Rare Breeds Trust of Australia: The Large Black | publisher= Rare Breeds Trust of Australia | author= Miller, Megg | accessdate= 2012-01-11 | date=2001}}</ref><ref name=ag&fish/> in ], Suffolk.<ref name=wall>{{cite book|title = Farm Live Stock of Great Britain |author = Wallace, Robert | edition = 4th |publisher= Edinburgh: Oliver and Boyd; London: Gurney and Jackson| date= 1907 | page= 718}}</ref> A trademark, consisting of the letters LBP within a shield, was registered in 1902.<ref name=miller/>

The ''Herd Book of Large Black Pigs'' was first published in 1899.<ref name=book>{{cite book|title = The Herd Book of Large Black Pigs | author= Large Black Pig Society | publisher= Bury St. Edmund's |date= 1899}}</ref> In it the large black pigs of Devon and Cornwall were combined under one name with the remnants of the smaller Black Essex, Black Suffolk or ],<ref name=RBST>{{cite web|url=http://www.rbst.org.uk/watch-list/pigs/largeblack|title= Pigs - Large Black|publisher=Rare Breeds Survival Trust|accessdate=2011-08-22}}</ref> and other black ]n breeds whose numbers had fallen below sustainable levels.<ref name=lut>{{cite journal| author=Lutwyche, Richard |title = The Large Black Pig | journal=Country Garden and Smallholding | publisher= Saffron Walden: Broad Leys Publishing|date=1998}}, cited by: {{cite web|url= http://www.rbta.org/lgeblack.htm | title= Rare Breeds Trust of Australia: The Large Black | publisher= Rare Breeds Trust of Australia | author= Megg Miller | accessdate= 2012-01-11 | date=2001}}</ref><ref name=miller/> There were considerable variations between the types in the two areas, but breeding stock was exchanged between them and by 1913 "general uniformity" had been achieved.<ref name=ag&fish/> The Large Black had by then spread throughout most of Britain, and had been exported to most of mainland Europe and to North and South America, Africa and Oceania.<ref name=ag&fish>{{cite book| title = British Breeds of Live Stock | author= Board of Agriculture and Fisheries | publisher= London: His Majesty's Stationery Office | date = 1913 | edition = Second | url= http://www.archive.org/stream/britishbreedsofl00grearich#page/n5/mode/2up}}</ref> In 1919 a Large Black sow was Supreme Champion at Smithfield, and at the Royal Show that year 121 Large Blacks were entered, more than any other breed.<ref name=PigAssociation/> Popularity of the breed peaked in the 1920s, however, and after World War II, population numbers declined as farmers began to favour pig breeds that would do well in intensive indoor farming.<ref name=ALBC/> The breed association was merged with the National Pig Breeders Association (later the British Pig Association) in 1949.<ref>{{cite web|url=http://www.largeblackpigs.co.uk/|title=Breed History|publisher=Large Black Pigbreeders Club|accessdate=2011-12-18}}</ref>

In 1955 the Howitt report on the development of pig production in the United Kingdom was published. Its main conclusions were that UK pig farms were poorly placed to compete with European producers, that the diversity of local breeds in the UK was an obstacle to progress, and that British pig farmers should focus on three breeds only: the ], the ], and the ].<ref name=trad3>{{cite book|author = Advisory Committee on Development of Pig Production in the United Kingdom|title= Development of pig production in the United Kingdom: Report of the Advisory Committee on Development of Pig Production in the United Kingdom |publisher= London: Her Majesty's Stationery Office|date= 1955}}, cited at: {{cite web|url=http://www.britishpigs.org.uk/trad3.htm |title= Official Policy to Focus on a Single Type of Pig |publisher= The British Pig Association|accessdate= 2012.01.10}}</ref> The report initiated a period of decline in all other British pig breeds, including the Large Black. By the time the ] was founded 1973, numbers of all traditional pig breeds were dangerously low, and many of them were extinct.<ref name=trad4>{{cite web|url=http://www.britishpigs.org.uk/trad4.htm |title= More Breeds are Lost |publisher= The British Pig Association|accessdate= 2012.01.10}}</ref><ref name=trad5>{{cite web|url=http://www.britishpigs.org.uk/trad5.htm |title= The Tide Begins to Turn |publisher= The British Pig Association|accessdate= 2012.01.10}}</ref> The Large Black was was placed on the Trust's endangered list.<ref name=ALBC>{{cite web|url=http://albc-usa.org/cpl/largeblack.html|title=Large Black Pig|publisher=American Livestock Breeds Conservancy|accessdate=2011-08-22}}</ref>

The first American imports were in the 1920s, but the population dwindled to the point where imports were again necessary in 1985.<ref name=Dohner/>


== Description == == Description ==
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The Large Black is a long, deep-bodied pig, well known for its hardiness and suitability for ].<ref name="Ekarius">{{cite book|author=Carol Ekarius|title=Storey's illustrated breed guide to sheep, goats, cattle, and pigs: 163 breeds from common to rare|year=2008|publisher=Storey Publishing|isbn=9781603420365|page=197}}</ref> It is the only pig breed in Britain to be all black,<ref name=PigAssociation/> and this trait helps protect the pig from ] in sunny climates.<ref name=Dohner/> Temperamentally, the Large Black is a very ] breed which is easily contained by fencing, partly because its large, drooping ears obscure its vision.<ref name="RB"/><ref name=Dohner/> The Large Black is a long, deep-bodied pig, well known for its hardiness and suitability for ].<ref name="Ekarius">{{cite book|author=Carol Ekarius|title=Storey's illustrated breed guide to sheep, goats, cattle, and pigs: 163 breeds from common to rare|year=2008|publisher=Storey Publishing|isbn=9781603420365|page=197}}</ref> It is the only pig breed in Britain to be all black,<ref name=PigAssociation/> and this trait helps protect the pig from ] in sunny climates.<ref name=Dohner/> Temperamentally, the Large Black is a very ] breed which is easily contained by fencing, partly because its large, drooping ears obscure its vision.<ref name="RB"/><ref name=Dohner/>


The breed is also known for its long periods of fertility and strong maternal instincts. Sows give birth to a large ] of 8–10 piglets, but some sows have been known to have litters of up to 13 piglets.<ref name="RB"/> Also of note is the Large Black sow listed in the '']'' for having produced 26 litters between 1940 and 1952 &ndash; the largest number of litters ever recorded for a pig.<ref name=RBST/> Boars weigh {{convert|700|to|800|lbs|kg}} and sows around {{convert|600|to|700|lbs|kg}}, although obesity in sows sometimes results in ] and a loss of fertility.<ref name=ALBC/> The breed has become larger over the years; in the early 1900s, weights averaged {{convert|500|lbs|kg}} for sows and larger for boars.<ref name=Plumb/> The breed is also known for the length of its fertility and strong maternal instincts. Sows give birth to a large ] of 8–10 piglets, but some sows have been known to have litters of up to 13 piglets.<ref name="RB"/> Also of note is the Large Black sow listed in the '']'' for having produced 26 litters between 1940 and 1952 &ndash; the largest number of litters ever recorded in a pig.<ref name=RBST/> Boars weigh {{convert|700|to|800|lbs|kg}} and sows around {{convert|600|to|700|lbs|kg}}, although obesity in sows sometimes results in ] and a loss of fertility.<ref name=ALBC/> The breed has become larger over the years, as in the early 1900s, weights averaged {{convert|500|lbs|kg}} for sows and larger for boars.<ref name=Plumb/>


At its peak of popularity, the Large Black was used mainly for meat production, especially ].<ref name=Ekarius/> The meat from the Large Black is known for its quality and flavour,<ref name=PigAssociation/> but for pork production it was often crossed with the ] and ] pigs,<ref name=ALBC/><ref name=Dohner/> producing a commercially well-regarded and vigorous hybrid.<ref name=ALBC/> At its peak of popularity, the Large Black was used mainly for meat production, especially ].<ref name=Ekarius/> The meat from the Large Black is known for its quality and flavour,<ref name=PigAssociation/> but for pork production it was often crossed with the ] and ] pigs,<ref name=ALBC/><ref name=Dohner/> producing a commercially well-regarded and vigorous hybrid.<ref name=ALBC/>
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==Conservation status== ==Conservation status==


In 1954 there were 2195 Large Black pigs recorded, 269 licensed boars and 1926 registered sows, representing approximately 3.4% of the UK pig population of about 65,000.<ref name=trad1>{{cite web|url=http://www.britishpigs.org.uk/trad1.htm |title= Our Unique Genetic Heritage: The Decline of Traditional Breeds |publisher= The British Pig Association|accessdate= 2012.01.11}}</ref> At the end of 2011 there were 421 Large Black pigs (86 boars and 335 sows) registered, a small increase over the 2010 figure of 405 (65 boars, 340 sows). The Large Black is the rarest historic pig breed in Britain,<ref name=lbpc>{{cite web|url=http://www.largeblackpigs.co.uk/|title=BPA Pig survey 2011 - Large Black|publisher= Large Black Pigbreeders Club|accessdate=2012-01-08|note=Click on "Bloodline"}}</ref> although numbers are slowly on the rise due to an increase in demand for meat from traditional pig breeds.<ref name=PigAssociation/> In 2011 it was classified as "vulnerable" on the watchlist of the Rare Breeds Survival Trust, meaning that there are believed to be between 200 and 300 breeding females.<ref>{{cite web|url=http://www.rbst.org.uk/files/RBST%20Watchlist.pdf|title=RBST Watchlist 2011|publisher=Rare Breeds Survival Trust|accessdate=2011-08-22}}</ref> The British Pig Association currently recognizes 6 boar lines and 24 sow lines within the breed.<ref name=PigAssociation>{{cite web|url=http://www.britishpigs.org.uk/breed_lb.htm|title=The Large Black|publisher=British Pig Association|accessdate=2011-08-22}}</ref> At the end of 2011 there were 421 Large Black pigs (86 boars and 335 sows) registered, a small increase over the 2010 figure of 405 (65 boars, 340 sows). The Large Black is the rarest historic pig breed in Britain,<ref name=lbpc>{{cite web|url=http://www.largeblackpigs.co.uk/|title=BPA Pig survey 2011 - Large Black|publisher= Large Black Pigbreeders Club|accessdate=2012-01-08|note=Click on "Bloodline"}}</ref> although numbers are slowly on the rise due to an increase in demand for meat from traditional pig breeds.<ref name=PigAssociation/> In 2011 it was classified as "vulnerable" on the watchlist of the Rare Breeds Survival Trust, meaning that there are believed to be between 200 and 300 breeding females.<ref>{{cite web|url=http://www.rbst.org.uk/files/RBST%20Watchlist.pdf|title=RBST Watchlist 2011|publisher=Rare Breeds Survival Trust|accessdate=2011-08-22}}</ref> The British Pig Association currently recognizes 6 boar lines and 24 sow lines within the breed.<ref name=PigAssociation>{{cite web|url=http://www.britishpigs.org.uk/breed_lb.htm|title=The Large Black|publisher=British Pig Association|accessdate=2011-08-22}}</ref>


In 2004 the ] listed the status of the Large Black as "critical", meaning that sow registrations in the Australian Pure Bred Pig Herd Book of the Australian Pig Breeders Association were fewer than 30 per year.<ref>{{cite web|url=http://rbta.org/Pdf%20Files/Status%20of%20Rare%20Breeds%20in%20Australia%20v10.pdf|title=Status of Rare Breeds of Domestic Farm Livestock in Australia 2004|page=17|format=PDF|author=Chambers, Fiona|publisher=Rare Breeds Trust of Australia|date=June 2004|accessdate=2012-02-09}}</ref> In 2004 the ] listed the status of the Large Black as "critical", meaning that sow registrations in the Australian Pure Bred Pig Herd Book of the Australian Pig Breeders Association were fewer than 30 per year.<ref>{{cite web|url=http://rbta.org/Pdf%20Files/Status%20of%20Rare%20Breeds%20in%20Australia%20v10.pdf|title=Status of Rare Breeds of Domestic Farm Livestock in Australia 2004|page=17|format=PDF|author=Chambers, Fiona|publisher=Rare Breeds Trust of Australia|date=June 2004|accessdate=2012-02-09}}</ref>
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==References== ==References==
{{Reflist|2}} {{Reflist}}


==External links== ==External links==

Revision as of 21:08, 11 February 2012

Large Black
Large BlackLarge Black sow and piglets (foreground)
Conservation statusVulnerable; in USA, critical
Other namesDevon pig, Cornwall Black
NicknamesLarge Black Hog
Country of originGreat Britain
Traits
Weight
  • Male: 700 to 800 pounds (320 to 360 kg)
  • Female: 600 to 700 pounds (270 to 320 kg)
  • Pig
  • Sus domesticus

The Large Black, occasionally called the Devon or Cornwall Black, is a breed of domestic pig native to Great Britain, particularly Devon, Cornwall and Essex. The Large Black is accurately named, as it is a large swine breed and is the only British pig that is entirely black. It is a hardy and docile pig, with Large Black sows also known for having large litters.

There were originally two types of black pigs, one from East Anglia and Essex and one from Devon and Cornwall. With the founding of a breed association in 1898, variations between the two types decreased. The Large Black was popular in the early 1900s and was exported to many areas of the world. Population numbers declined after the Second World War as farmers turned to breeds more suitable to intensive pig farming, and by the 1960s the breed was almost extinct. Numbers have slowly risen, but it is still considered vulnerable by the Rare Breeds Survival Trust, the American Livestock Breeds Conservancy, and Rare Breeds Canada.

History

The Large Black resulted from the amalgamation of black pigs from south-west England and those of East Anglia, with the latter sometimes being called the "Small Black". The pigs from East Anglia, mainly Essex, were strongly influenced by importations from China in the late 18th century, while those from Devon and Cornwall were probably much more closely related to the pigs on mainland Europe, particularly France. Alternative origins proposed for the black colour of the breed are black Guinea hogs imported from Africa (similar to the Guinea Hog of the U.S.) or from Neapolitan pigs.

The Devon pigs were originally selected for "the length of their bodies, ears, noses, tail and hair, the longer the better, without reference to quality or substance," but selective breeding brought improvements to the breed, and by 1850 the type was small-boned and thick-bodied, with good conformation and constitution. The two types were very distinct by the late 1880s, but after the founding of the breed association, breeding stock was increasingly exchanged between the two regions, and variations decreased.

Large Black piglets

During the late 19th century, the Large Black grew enormously in popularity. In 1899, a breed association, the Large Black Pig Society, was formed. By 1900, Large Blacks were one of the most popular and numerous English pig breeds. In the early 1900s, the Large Black was exported to mainland Europe, North and South America, Africa and Oceania. The first American imports were in the 1920s, but the population dwindled to the point where imports were again necessary in 1985. Popularity of the breed peaked in the 1920s, however, and after World War II, population numbers declined as farmers began to favour pig breeds that would do well in intensive indoor farming. The breed association was merged with the National Pig Breeders Association (later the British Pig Association) in 1949. During the 1960s the breed almost became extinct, and in 1973 it was placed on the British Rare Breeds Survival Trust endangered livestock list.

Description

The Large Black is notable for its very large ears, which often obscure its vision.

The Large Black is a long, deep-bodied pig, well known for its hardiness and suitability for extensive farming. It is the only pig breed in Britain to be all black, and this trait helps protect the pig from sunburn in sunny climates. Temperamentally, the Large Black is a very docile breed which is easily contained by fencing, partly because its large, drooping ears obscure its vision.

The breed is also known for the length of its fertility and strong maternal instincts. Sows give birth to a large litter of 8–10 piglets, but some sows have been known to have litters of up to 13 piglets. Also of note is the Large Black sow listed in the Guinness Book of Records for having produced 26 litters between 1940 and 1952 – the largest number of litters ever recorded in a pig. Boars weigh 700 to 800 pounds (320 to 360 kg) and sows around 600 to 700 pounds (270 to 320 kg), although obesity in sows sometimes results in cystic ovaries and a loss of fertility. The breed has become larger over the years, as in the early 1900s, weights averaged 500 pounds (230 kg) for sows and larger for boars.

At its peak of popularity, the Large Black was used mainly for meat production, especially bacon. The meat from the Large Black is known for its quality and flavour, but for pork production it was often crossed with the Yorkshire and Middle White pigs, producing a commercially well-regarded and vigorous hybrid.

Conservation status

At the end of 2011 there were 421 Large Black pigs (86 boars and 335 sows) registered, a small increase over the 2010 figure of 405 (65 boars, 340 sows). The Large Black is the rarest historic pig breed in Britain, although numbers are slowly on the rise due to an increase in demand for meat from traditional pig breeds. In 2011 it was classified as "vulnerable" on the watchlist of the Rare Breeds Survival Trust, meaning that there are believed to be between 200 and 300 breeding females. The British Pig Association currently recognizes 6 boar lines and 24 sow lines within the breed.

In 2004 the Rare Breeds Trust of Australia listed the status of the Large Black as "critical", meaning that sow registrations in the Australian Pure Bred Pig Herd Book of the Australian Pig Breeders Association were fewer than 30 per year.

The American Livestock Breeds Conservancy estimated the Large Black population of the United States at 300 breeding hogs in 2008, and lists its status as "critical", which means that fewer than 200 animals are registered each year in the United States, and there are estimated to be fewer than 2,000 worldwide. Rare Breeds Canada identified the single remaining Canadian herd in 1997, and has since included the breed on its conservation watchlist as "endangered", with fewer than 500 of the animals in that country.

References

  1. ^ Alderson, R. (1994). Rare Breeds. Laurence King Publishing. pp. 27–28. ISBN 1856690520.
  2. ^ "Pigs - Large Black". Rare Breeds Survival Trust. Retrieved 2011-08-22.
  3. ^ Janet Vorwald Dohner (2001). The encyclopedia of historic and endangered livestock and poultry breeds. Yale University Press. pp. 189–190. ISBN 9780300088809.
  4. ^ Plumb, Charles Sumner (1920). Types and Breeds of Farm Animals. Country life education. Ginn. p. 762.
  5. ^ "The Large Black". British Pig Association. Retrieved 2011-08-22.
  6. ^ "Large Black Pig". American Livestock Breeds Conservancy. Retrieved 2011-08-22.
  7. "Breed History". Large Black Pigbreeders Club. Retrieved 2011-12-18.
  8. ^ Carol Ekarius (2008). Storey's illustrated breed guide to sheep, goats, cattle, and pigs: 163 breeds from common to rare. Storey Publishing. p. 197. ISBN 9781603420365.
  9. "BPA Pig survey 2011 - Large Black". Large Black Pigbreeders Club. Retrieved 2012-01-08. {{cite web}}: Unknown parameter |note= ignored (help)
  10. "RBST Watchlist 2011" (PDF). Rare Breeds Survival Trust. Retrieved 2011-08-22.
  11. Chambers, Fiona (June 2004). "Status of Rare Breeds of Domestic Farm Livestock in Australia 2004" (PDF). Rare Breeds Trust of Australia. p. 17. Retrieved 2012-02-09.
  12. "American Livestock Breeds Conservancy: Large Black Hog". American Livestock Breeds Conservancy. Retrieved 2012-01-08.
  13. "Breed Information – ALBC Conservation Priority List". American Livestock Breeds Conservancy. Retrieved 2011-08-22.
  14. "Parameters of Livestock Breeds on the ALBC Conservation Priority List (2007)". American Livestock Breeds Conservancy. Retrieved 2011-08-22.
  15. "Pig Breeds". Rare Breeds Canada. Retrieved 2012-01-15.

External links

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