|
Legbar
The Legbar is a rare British auto-sexing breed of chicken. It was created in the early twentieth century by Reginald Crundall Punnett and Michael Pease at the Genetical Institute of Cambridge University. They cross-bred American barred Plymouth Rock birds with brown Leghorns and created the gold and silver colour varieties. Pease created a cream Legbar by cross-breeding these with white Leghorns; later crossing with Araucanas caused this to have a crest and to lay blue or blue-green eggs. History The Legbar was the second auto-sexing chicken breed created by Reginald Crundall Punnett and Michael Pease at the Genetical Institute of Cambridge University, after the Cambar, which was created in 1929 by crossing barred Plymouth Rock with gold Campine birds. The Legbar arose from cross-breeding of Plymouth Rock birds with brown Leghorns, which at that time were two of the principal egg-laying breeds. As with the Cambar, they set out to breed a bird that would both have brown ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auto-sexing
Auto-sexing breeds of poultry are those in which the sex of newly-hatched chicks can be determined from the colour and markings of the down. Some breeds of chicken, of goose and of domestic pigeon have this characteristic. The idea of such a breed is due to Reginald Punnett, who created the first auto-sexing chicken breed, the Cambar, at the Genetical Institute in Cambridge in 1928. Mechanism Unlike sex-linked hybrids, such as 'red sex-links' or 'black sex-links', the Legbar is an auto-sexing breed. Several other auto-sexing breeds or auto-sexing varieties of breeds exist, such as Plymouth Rock, Bielefelder Kennhuhn, Niederrheiner, and Norwegian Jærhøns. Most breeds that end with -bar, such as Welbar, Rhodebar, Brussbar or Wybar, are auto-sexing as well. The importance that auto-sexing plays in the Legbar breed is also reflected in the fact that, next to a standards for the adult birds, the down colour and patterns are also standardised. Day-old male chicks can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambar
The Cambar is the first autosexing breed of chicken intentionally created, and the first autosexing breed of poultry in general. The Cambar was developed by Reginald Punnett and Michael Pease in 1929. The Cambar was a mixture of the Barred Plymouth Rock and the Gold Campine. History The Cambar was first shown at the Third World Poultry Congress in 1930.{{Cite web , title=Autosexing: Cambar ‐ The Poultry Club , url=http://www.poultryclub.org/breeds/chickens/soft-feather-light/autosexing-cambar/ , access-date=2023-03-25 , website=www.poultryclub.org The breed was standardized in 1947. See Also *Legbar The Legbar is a rare British auto-sexing breed of chicken. It was created in the early twentieth century by Reginald Crundall Punnett and Michael Pease at the Genetical Institute of Cambridge University. They cross-bred American barred Pl ... *Bielefelder References External LinksPhoto Gallery Chicken breeds Auto-sexing chicken breeds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicken Breeds
There are hundreds of chicken breeds in existence. Domesticated for thousands of years, distinguishable breeds of chicken have been present since the combined factors of geographical isolation and selection for desired characteristics created regional types with distinct physical and behavioral traits passed on to their offspring. The physical traits used to distinguish chicken breeds are size, plumage color, comb type, skin color, number of toes, amount of feathering, egg color, and place of origin. They are also roughly divided by primary use, whether for eggs, meat, or ornamental purposes, and with some considered to be dual-purpose. In the 21st century, chickens are frequently bred according to predetermined breed standards set down by governing organizations. The first of such standards was the British Poultry Standard, which is still in publication today. Other standards include the Standard of Perfection, the Australian Poultry Standard, and the standard of the American B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael Pease
Michael Stewart Pease OBESupplement to the London Gazette 11 June 1966, p6542 (2 October 1890 – 27 July 1966) was a British classical genetics, classical geneticist at Cambridge University. Michael Pease was the son of Edward Reynolds Pease, writer and a founding member of the Fabian Society, of the Pease family of Quakers. He was educated at Bedales School and Trinity College, Cambridge, where he was elected chairman of the Cambridge Universities Labour Club, Cambridge University Fabian Society. On 24 February 1920 he married Helen Bowen Wedgwood, daughter of the Labour politician Josiah Wedgwood IV (later 1st Baron Wedgwood), of the Wedgwood pottery family at Chelsea Register Office. Their children include the physicist Bas Pease and Jocelyn Richenda Gammell Pease (1925–2003), who married the Nobel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leghorn Chicken
The Leghorn (, ; it, Livorno, italic=no or Livornese) is a breed of chicken originating in Tuscany, in central Italy. Birds were first exported to North America in 1828 from the Tuscan port city of Livorno, on the western coast of Italy. They were initially called "Italians", but by 1865 the breed was known as "Leghorn", the traditional anglicisation of "Livorno". The breed was introduced to Britain from the United States in 1870. White Leghorns are commonly used as layer chickens in many countries of the world. Other Leghorn varieties are less common. History The origins of the Leghorn are not clear; it appears to derive from light breeds originating in rural Tuscany. The name comes from Leghorn, the traditional anglicisation of Livorno, the Tuscan port from which the first birds were exported to North America. The date of the first exports is variously reported as 1828, "about 1830" and 1852. They were initially known as "Italians"; they were first referred to as "Leghor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rare Breeds Survival Trust
The Rare Breeds Survival Trust is a conservation charity whose purpose is to secure the continued existence and viability of the native farm animal genetic resources (FAnGR) of the United Kingdom. It was founded in 1973 by Joe Henson to preserve native breeds; since then, no UK-native breed has become extinct. It maintains a watch list of rare native breeds of cattle, sheep, pigs, horses, goats and poultry,Rare Breeds Survival Trust watch list accessed June 2016 and an approved list of farm parks.Rare Breeds Survival Trust approved farm parks accessed February 2012 Projects have included the collection of genetic material ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rare Poultry Society
The Rare Poultry Society, established in 1969, is a British breed club devoted to the protection and promotion of rare poultry breeds, which the Society defines as breeds that do not have their own breed club in the United Kingdom. The society's quarterly newsletter has been used as the source material for a number of books on rare breeds in the United Kingdom. Notes Works cited * * * See also * Poultry Club of Great Britain * Rare breed (agriculture) In modern agriculture, a rare breed is a breed of poultry or livestock that has a very small breeding population, usually from a few hundred to a few thousand. Because of their small numbers, rare breeds may have a threatened conservation status ... Breeder organizations Poultry farming in the United Kingdom Poultry fancy organizations Agricultural organisations based in the United Kingdom 1969 establishments in the United Kingdom {{UK-org-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crest (feathers)
The crest is a prominent feature exhibited by several bird and other dinosaur species on their heads. It is distinct from features such as casques and cockscombs - sometimes erroneously referred to as "crests", which are bony and fleshy structures respectively. The crest is made up of semiplume feathers: a long rachis with barbs on either side. These are plumulaceous feathers, meaning that they are soft and bendable. In birds, these semiplumes are common along the head, neck, and upper back, and may be used for buoyancy and sensing vibrations. Crests on birds are generally used for display purposes. Cockatoos and their smaller cousins, cockatiels, are part of the parrot family Cacatuidae found in Australia, the Bismarck Archipelago and the Philippines, and are probably the most recognizable birds to feature crests. Cockatoos and cockatiels possess crests which may be raised or lowered at will. Their crests are used to communicate with fellow members of their species, or as a fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rare Breed Survival Trust
The Rare Breeds Survival Trust is a conservation charity whose purpose is to secure the continued existence and viability of the native farm animal genetic resources (FAnGR) of the United Kingdom. It was founded in 1973 by Joe Henson to preserve native breeds; since then, no UK-native breed has become extinct. It maintains a watch list of rare native breeds of cattle, sheep, pigs, horses, goats and poultry,Rare Breeds Survival Trust watch list accessed June 2016 and an approved list of farm parks.Rare Breeds Survival Trust approved farm parks accessed February 2012 Projects have included the collection of genetic material ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poultry Club Of Great Britain
The Poultry Club of Great Britain is a registered charity founded in 1877. Its stated purpose is to "safeguard the interests of all pure and traditional breeds of poultry including chickens, bantams, ducks, geese and turkeys". The club maintains the British Poultry Standard and acts as the overseeing body for all poultry breed clubs in Great Britain and Northern Ireland. It is also responsible for organizing the annual National Poultry Show. The club donated to The Museum of English Rural Life David Scrivener's collection of printed materials related to the breeding and keeping of poultry. See also * American Poultry Association * Rare Poultry Society The Rare Poultry Society, established in 1969, is a British breed club devoted to the protection and promotion of rare poultry breeds, which the Society defines as breeds that do not have their own breed club in the United Kingdom. The society's q ... References Organizations established in 1877 Poultry fancy organiza ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sex-link
Sex-links are crossbred chickens whose color at hatching is differentiated by sex, thus making chick sexing an easier process. Sex-links come in several varieties. As hybrids of laying or dual-purpose breeds infused with extra vigor via heterosis, sex-links can be extremely good egg-layers which often produce 300 eggs a year or more depending on the quality of care and feed. The color of their eggs vary according to the mix of breeds, and blue-green eggs are possible. Chicks of a single breed that are similarly sex-linked are called autosex chickens, a term developed to differentiate between sex linkage in purebred chickens versus sex linkage in crossbreeds. Sex-link types Many common varieties are known as the black sex-link (also called black stars) and the red sex-link (also called red stars). More specific variety names are common as well. * Black sex-link like "Black rocks" are a cross between unique specially bred hybrid strains of Rhode Island Red rooster (but any non-w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
