Search results
Results From The WOW.Com Content Network
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 ...
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 ...
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.
Black sex-link like "Black rocks" are a cross between unique specially bred hybrid strains of Rhode Island Red rooster (but any non-white and non barred rooster may be used for other black sex-link crosses) and a Barred Rock hen (which carry both extended black and barring genes).
It had been early established that hen-feathering is a trait controlled by a simple autosomic dominant gene, whose expression is limited to the male sex. [ 3 ] [ 4 ] [ 5 ] The genetic symbol proposed by F. B. Hutt in 1958 to designate this autosomic dominant gene was Hf (after "hen feathering") [ 6 ] which was accepted by other geneticists. [ 7 ]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
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.