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The sex-linked slow-feathering gene can be used for crosses where the sex of the chicks can be determined at hatching time by the length of the wing feathers. A cross between a fast-feathering male and a slow-feathering female results in offspring where the female chicks have primary wing feathers that are significantly longer than the coverts ...
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.
Chick. In poultry farming, in-ovo sexing is a chick sexing method carried out while chicks are still in ovo (Latin for "inside the egg"). There are various methods to determine a chick's sex in the 21-day incubation period before it hatches. In-ovo sexing technology has branched into two categories, invasive and non-invasive.
For certain breeds, sex is identifiable by their feathers. Another method is vent sexing, a discreet term for checking the chicks’ reproductive organs. Depending on gender, chicks are fed ...
Sexing or gender identification [1] is the process of determining the sex of an individual animal. Through sexing, biologists and agricultural workers determine the sex of livestock and other animals they work with. The specialized trade of chicken sexing has a particular importance in the poultry industry.
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.
The long feathers of the neck Primary flights or primaries: The longest and outermost feathers of the wing Saddle feathers Feathers covering the back or saddle before the tail coverts; in cocks they are long and pointed divided into upper and lower saddles Scapulars Short feathers on the upper side of the wing near the body Secondaries
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