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The stages are delineated through the development of structures, not by size or the number of days of development, and so the chronology can vary between species, and to a certain extent between embryos. In the human being, only the first 60 days of development are covered; at that point, the term embryo is usually replaced with the term fetus.
They are sex linked, that means that the sex of a chick is discernible from birth as both male and females have distinct physical attributes, e.g color. Distinguishing between female and male Golden comets is based on their coloration. Females are characterized by a golden buff color with stripes, while males display a pale yellow hue. [2]
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.
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Inheritance of chicken plumage color is complex. It depends on several genetic factors which interact epistatically. Genetic symbology for most color plumage mutations can be found in Hutt's classical book of poultry genetics published in 1949, [2] in Abbott and Yee's Handbook published in 1975 [22] and in Some's alphabetical list of genes ...
Most people don’t think about chickens having personalities, but anyone who has kept a few hens in the backyard can tell you that these little birds can have very big opinions.
The "lavender" gene (lav) in the chicken causes the dilution of both black (eumelanin) and red/brown (phaeomelanin) pigments, so according to color background, dilution due to "lavender" gives a sort of plumage color patterns: On an extended black background, this condition causes the entire surface of the body an even shade of light slaty blue, which is the typical phenotype known as '"self ...