How to identify the male and female of chicks with the feather color method! Expedited

Gold and silver feather self-differentiation method: when mating with a golden feather rooster and a silver feather hen, the male chicks of its offspring are silver, and the female chicks are golden, and the identification rate can reach more than 99. The vast majority of commercial generations of brown-shell laying hens can be feathered separately from male and female.

Note that when mating with a silver-feathered rooster and a golden-feathered hen, the offspring cannot be separated from each other. Transverse spot (reed flower) 1Transverse Spotted Rock (Luhua Chicken.

Feather color self-differentiation Transverse locquet feather color is made up of sex chromosomes.

The dominant gene B controls that a rooster has a B gene on each of the two sex chromosomes, which is more affected than a hen that has only one B gene on one sex chromosome, so the white transverse spots in the feathers of a genotype homozygous transverse rooster are wider than those of the hen. The effects of gene B on newborn chicks are as follows: the newborn fluff of Luhua chicken is black, there is a small white patch (oval) on the top of the head, the male chick is large and irregular, and the female chick has white spots.

Much smaller than the male chick; The abdomen is grayish-white in varying degrees, and the body is black and the female chick is darker than the male chick; The color of the feet of the newborn female chick is darker than that of the male chick, and the black of the toes suddenly turns yellow at the end of the foot, which can be significantly distinguished, while the plantar part of the male chick is pale in color, and there is no obvious dividing line between black and yellow.

After selection, the pure horizontal spotted chickens can distinguish the male and female of newborn chicks according to the above three characteristics, and the accuracy rate can reach more than 96. 2.Non-transverse to transverse roosters (white to hang and other dominant white feathered chickens.

Except) mated with a transverse hen, and the offspring are cross-inherited, i.e., the male chicks are all transversely feathered, and the female chicks are all non-transversely feathered. For example, when mating a Lo Island red rooster with a cross-spotted hen, the youngsters will all have cross-spotted feathers (black fluff with irregular white spots on the top of their heads), and the hens will have black fluff all over their bodies or streaks on their backs.

Questioner's follow-up 2009-06-01 21:20 There are a few golden ones on the chicks of Hailan commodity Right!

Answer] :(1) Save feed, the laying hen farm only raises female chicks, and the imitation value of raising male chicks is not large, wasting feed;

2) Save poultry house, labor and various feeding costs;

3) It can improve the survival rate and uniformity of mother chicks;

4) The separation of male and female feeding is conducive to the growth and development of hens, and avoids the rapid development of male chicks and the rapid development of citrus fibers and the grabbing of food, which affects the development of female chicks.

5) The broiler is slaughtered with high uniformity.

Questioner's follow-up 2009-06-01 21:20 There are a few golden ones on the chicks of Hailan commodity Right!