Breeding method for black-feather laying hen commercial line male parent and breed forming mode of commercial line

Abstract

The invention relates to the technical field of breeding industry, in particular to a poultry breeding technology, and particularly discloses a breeding method for a black-feather laying hen commercial line male parent and a breed forming mode of the commercial line. The breeding method for the commercial line male parent includes the steps that a common black-feather hen is selected as a sample according to requirements for weight and laying of the black-feather hen of the market, a high-yield rhode island red chicken and the selected black-feather hen are hybridized to produce a synthetic line, and after the synthetic line is hybridized, chicks meeting the market requirement are selected and continue to be bred to obtain chicks of the first generation; chicks of the second generation are obtained after the chicks of the first generation are screened and hybridized; chicks of the third generation are obtained after the chicks of the second generation are screened and hybridized; groups of all the generations need to be specifically screened before breeder selection, and a screened hybridization cock of the third generation is the black-feather laying hen commercial line male parent. A rhode island white line is used as a female parent to form the commercial line of the high-yield black-feather laying hen, offspring female chicks of the parent generation are black-feather hens, offspring male chicks of the parent generation are white-feather cocks, male and female can be distinguished naturally, and the egg yield of commercial generation with the age of 72 weeks can be 300 or more.

Description

technical field [0001] The invention belongs to the technical field of breeding industry and relates to poultry breeding technology, in particular to a method for breeding male parents of a mating line of black-feathered laying hens and a seed production mode of the mating line. Background technique [0002] The main difference between black feather chickens, yellow feather chickens and hemp feather chickens is the proportion of black feathers to the whole body feathers of chickens. More than 95% of the feathers are black feathers, black feathers, black feathers with yellow feathers as dark hemp, yellow feathers as light hemp with black feathers, and only a small amount of black on the tail or neck. Those without even black feathers are called yellow-feathered chickens. The colors of feathers and shanks of local chicken breeds or newly bred matching systems in my country mainly include yellow feathers and yellow shanks (feet), black feathers and yellow shanks (feet), black ...

AI Technical Summary

Problems solved by technology

In terms of male-female identification rate, it is considered that there are relatively large factors, which are limited by the personnel management level of the hatch, and cases where the identification rate is lower than 99% often occur

These shortcomings have greatly affected the competitiveness of the breeding line of Xinyang black feather hens

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