Breeding for hybrid black and yellow shank auto-sexing mating new line of Jianghan chickens of the same variety

Abstract

The invention provides breeding for a hybrid black and yellow shank auto-sexing mating new line of Jianghan chickens of the same variety. Homozygous black shank cocks and yellow shank hens are found by individual mating experiments, and a shank color determining gene related to gender is explored from the Jianghan chickens for the first time and applied to auto-sexing of the Jianghan chickens; high-throughput research of a modern mode is performed on the Jianghan chickens with a whole genome sequencing method for the first time, and brand-new materials are provided for future research of genetic resources and historical origin of the Jianghan chickens while genetic markers for auto-sexing of the Jianghan chickens are explored; interference of pigment modifying genes is eliminated, and theaccuracy rate of the auto-sexing is increased. The breeding has the beneficial effects as follows: the broad prospects of economic incomes of massive enterprises are expanded, social benefits of the Jianghan chickens are increased, and breed conservation and utilization of the Jianghan chickens are facilitated.

Description

technical field [0001] The invention belongs to the field of poultry breeding, and in particular relates to the cultivation of a new strain of the same breed of Jianghan chicken hybridized with black and yellow shank self-sexed. Background technique [0002] The known traditional method of turning the anus of the chicks is carried out on the day of hatching, usually when the villi are dry and able to stand two hours after hatching. After opening the anus, under bright light, if you see very small granular If the penis protrudes, it is a male chick, and if there is no protuberance, it is a female chick. The accuracy rate can reach between 82% and 95%. One of the limitations of using this method must be completed within 24 hours after hatching, which is too time consuming. Long, the accuracy rate drops rapidly; the second is that skilled technical workers are required, which will cause great damage to the eyes of personnel; the third is that turning the anus poses a threat to ...

AI Technical Summary

Problems solved by technology

[0002] The known traditional method of turning the anus of the chicks is carried out on the day of hatching, usually when the villi are dry and able to stand two hours after hatching. After opening the anus, under bright light, if you see very small granular If the penis protrudes, it is a male chick, and if there is no protuberance, it is a female chick. The accuracy rate can reach between 82% and 95%. One of the limitations of using this method must be completed within 24 hours after hatching, which is too time consuming. Long, the accuracy rate drops rapidly; second, it requires skilled technical workers, which will cause great damage to the eyes of personnel; third, the anus turning poses a threat to the health of the chicken, and it is easy to cause infection and death; fourth, the accuracy rate fluctuates greatly

In research at home and abroad, there have been successful cases of self-sexing through chicken shank color and feather speed, but the research object is to carry out hybridization of different breeds, and this kind of hybridization consumes a lot of manpower and material resources

[0003] There is no new technological breakthrough for the above-mentioned defects

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