The Dorset Horn is an endangered British breed of

domestic sheep Sheep or domestic sheep (''Ovis aries'') are domesticated, ruminant mammals typically kept as livestock. Although the term ''sheep'' can apply to other species in the genus '' Ovis'', in everyday usage it almost always refers to domesticated ...

. It is documented from the seventeenth century, and is highly prolific, sometimes producing two lambing seasons per year. Among British sheep, it is the only breed capable of breeding throughout the

winter Winter is the coldest season of the year in polar and temperate climates. It occurs after autumn and before spring. The tilt of Earth's axis causes seasons; winter occurs when a hemisphere is oriented away from the Sun. Different cultur ...

History

The Dorset Horn originated in

Dorset Dorset ( ; archaically: Dorsetshire , ) is a county in South West England on the English Channel coast. The ceremonial county comprises the unitary authority areas of Bournemouth, Christchurch and Poole and Dorset. Covering an area of , ...

in south-west England. Like the extinct Pink-nosed Somerset to which it is related, it probably derived from

cross-breeding A crossbreed is an organism with purebred parents of two different breeds, varieties, or populations. ''Crossbreeding'', sometimes called "designer crossbreeding", is the process of breeding such an organism, While crossbreeding is used to main ...

Merino The Merino is a breed or group of breeds of domestic sheep, characterised by very fine soft wool. It was established in Spain near the end of the Middle Ages, and was for several centuries kept as a strict Spanish monopoly; exports of the bree ...

s imported from Spain with local tan-faced sheep similar to the modern Portland. Unlike many British

lowland Upland and lowland are conditional descriptions of a plain based on elevation above sea level. In studies of the ecology of freshwater rivers, habitats are classified as upland or lowland. Definitions Upland and lowland are portions of p ...

breeds, Dorset sheep were not influenced by cross-breeding with the

Leicester Leicester ( ) is a city status in the United Kingdom, city, Unitary authorities of England, unitary authority and the county town of Leicestershire in the East Midlands of England. It is the largest settlement in the East Midlands. The city l ...

or Southdown breeds which were much used for this purpose in the latter eighteenth and early nineteenth centuries. A breeders' society, the Dorset Horn Sheep Breeders' Association, was set up in 1891 and the first flock book was published in the following year. The Dorset Horn was exported to many countries, among them

Australia Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. With an area of , Australia is the largest country by ...

South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring coun ...

and the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...

, where the first arrivals were in the

1860s The 1860s (pronounced "eighteen-sixties") was a decade of the Gregorian calendar that began on January 1, 1860, and ended on December 31, 1869. The decade was noted for featuring numerous major societal shifts in the Americas. In the United St ...

, and where substantial numbers were imported from about 1880. The Dorset Horn reached Australia in 1895, and New Zealand in 1897. A polled variant of the breed, the

Poll Dorset The Poll Dorset, a short-wool, meat-producing sheep, was developed in Australia between 1937 and 1954 with the aim of breeding a true Dorset type sheep without horns. The poll gene was introduced into Dorset Horn flocks from two other polled bre ...

, was bred in Australia through cross-breeding with the hornless

Corriedale The Corriedale is a New Zealand breed of sheep. It was bred from about 1882 in the South Island by James Little, who cross-bred Merino and Lincoln Longwool sheep. The breed was officially recognised in 1911. It has been exported to Australia a ...

and Ryeland breeds. From about 1950, this was introduced to the United Kingdom, where it rapidly supplanted the horned variant; the breed association changed its name in 1981 to the Dorset Horn and Poll Dorset Sheep Breeder's Association, and registers both breeds. A different polled variant of the breed arose in the United States, derived from a polled

sport Sport pertains to any form of competitive physical activity or game that aims to use, maintain, or improve physical ability and skills while providing enjoyment to participants and, in some cases, entertainment to spectators. Sports can, ...

in a flock kept by

North Carolina State University North Carolina State University (NC State) is a public land-grant research university in Raleigh, North Carolina. Founded in 1887 and part of the University of North Carolina system, it is the largest university in the Carolinas. The univers ...

. This Polled Dorset was registered with the breed association – the Continental Dorset Club – from 1956; as elsewhere, it soon became more widespread than the original horned type. The world-wide

conservation status The conservation status of a group of organisms (for instance, a species) indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservation ...

of the Dorset Horn was listed by the

FAO The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...

as "not at risk" in 2007. At country level, it is listed as "vulnerable" by the Rare Breeds Trust of Australia, as "priority" by the

Rare Breeds Conservation Society of New Zealand __NOTOC__ The Rare Breeds Conservation Society of New Zealand (RBCSNZ) was founded in 1988 to conserve, record and promote rare livestock breeds with the aim of maintaining genetic diversity within livestock species. The area of coverage is broa ...

, and as "threatened" by the

Livestock Conservancy The Livestock Conservancy, formerly known as the American Livestock Breeds Conservancy (ALBC) and prior to that, the American Minor Breeds Conservancy, is a nonprofit organization focused on preserving and promoting rare breeds, also known as "h ...

in the USA. In the United Kingdom, where in the 1980s there were more than 100,000 breeding ewes, its status is listed by the Rare Breeds Survival Trust as "at risk", meaning that the total number is between 900 and 1500 head. The Dorset Horn has contributed to the development of several other breeds: the

Dorper The Dorper is a South African breed of domestic sheep developed by crossing Dorset Horn and the Blackhead Persian sheep. The breed was created through the efforts of the South African Department of Agriculture to breed a meat sheep suitable to ...

and

Dormer A dormer is a roofed structure, often containing a window, that projects vertically beyond the plane of a pitched roof. A dormer window (also called ''dormer'') is a form of roof window. Dormers are commonly used to increase the usable spac ...

breeds of South Africa, through

with the

Blackhead Persian The Blackhead Persian (also known as Swartkoppersie) is a fat-tailed breed of domestic sheep from Africa. The sheep is originally from Somalia and a direct descendant of the Somali sheep. The breed is also a type of hair sheep, meaning they do n ...

and

s respectively; and the British Milksheep and Cadzow Improver in the United Kingdom.

Characteristics

The Dorset Horn is white-woolled and white-faced; the nostrils are a characteristic pink. It is horned in both sexes, with heavy spiral horns on rams. The fleece is thick, with a weight of , a staple length of , and a Bradford count of .

History

Characteristics

References

Further reading