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Sex-linked barring is a plumage pattern on individual feathers in chickens, which is characterized by alternating pigmented and apigmented bars. [1] The pigmented bar can either contain red pigment ( phaeomelanin ) or black pigment ( eumelanin ) whereas the apigmented bar is always white.
Pages in category "Chicken plumage patterns" The following 7 pages are in this category, out of 7 total. This list may not reflect recent changes. F.
Figure 1. Feathering types in ten-day-old chicks.Left: Fast normal-feathering chick. Right: Delayed-feathering chick carrying sex-linked K gene. Delayed-feathering in chickens is a genetically determined delay in the first weeks of feather growing, which occurs normally among the chicks of many chicken breeds and no longer manifests itself once the chicken completes adult plumage.
This method works for hatching eggs from sex-linked breeds where male and female birds have different color plumage, all males white-feathered and all females brown-feathered for example, [38] and can take place from the 13th day of the hatching process. [39] AAT's goal is to eventually be able to sex eggs at the 4th day. [34]
Solid black plumage color refers to a plumage pattern in chickens (Gallus gallus domesticus) characterized by a uniform, black color across all feathers. There are chicken breeds where the typical plumage color is black, such as Australorp , Sumatra , White-Faced Black Spanish , Jersey Giant and others.
The concept of an auto-sexing breed of chicken is due to the geneticist Reginald Punnett, who during the First World War had already proposed the technique of cross-breeding chickens carrying the barred gene (B) with others to produce sex-linked chicks with plumage differences that could easily be distinguished.
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Breeders and fanciers of chickens accurately describe the colours and patterns [1] of the feathers of chicken breeds and varieties. This is a list of the terms used in this context. This is a list of the terms used in this context.