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Breeding method of pure line of green-shell layer hens

A breeding method and technology of green-shell laying hens, which are applied in the field of breeding pure lines of green-shell laying hens, can solve the problems of difficulty in using green-shell traits and low economic benefits, etc.

Active Publication Date: 2016-01-20
SICHUAN ANIMAL SCI ACAD
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AI Technical Summary

Problems solved by technology

At present, the hybrid commercial generation green-shell hens on the market, although the eggs produced by them are mainly green-shell, but the proportion of green-shell varies from 60 to 90%, and the economic benefit is low.
5% of chickens in Jiuyuan black chickens produce green-shell eggs, and the genotypes of the green-shell gene are mostly heterozygotes in the natural state, which brings difficulties to the utilization of the green-shell trait of this breed

Method used

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  • Breeding method of pure line of green-shell layer hens
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Embodiment

[0016] The first step, the choice of parents

[0017] (1) The choice of female parent: take the hen that lays green-shelled eggs in the old courtyard black chickens as the material, and determine its genotype (OO and Oo) by observing the color of the egg-shells it lays. Among them, individuals who are heterozygous for the green-shell gene (Oo) The eggs produced are adulterated with white shell eggs, and the eggs produced by homozygous individuals (OO) are all green shell eggs;

[0018] (2) The selection of male parents: The method of family selection is adopted, and the old courtyard black chicken roosters are used as materials, and their genotypes are OO, Oo and oo. Each rooster and 10 high-yielding white-shell hens (genotypes are oo) Carry out hybridization and record the egg production of each family;

[0019] ①. If the eggs of the hens in the family are all white shell eggs, the genotype of the rooster of the family is oo, that is, the family does not possess the green shell gen...

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Abstract

The invention relates to an animal cultivation method, in particular to a cultivation method for a green-shelled-egg chicken pure line. The method adopts Jiuyuan black chickens as materials, and the method can be applied to purification of varieties of other chickens with green-shelled-egg consanguinity. The method comprises the following steps: 1) selection of parents; 2) production of homozygosis green shell gene individuals; 3) expanding propagation of colony. The method has the advantages that the construction of green-shelled-egg chicken homozygosis colony is realized, homozygosis genotype green-shelled-egg chickens can be bred by screening heterozygosis genotype at the natural conditions and adopting a scientific breeding scheme, quick expanding propagation can be realized, and the method can be applied to purification of varieties of other chickens with green-shelled-egg consanguinity.

Description

Technical field [0001] The invention relates to an animal breeding method, in particular to a method for breeding a pure line of green-shell laying hens, which uses old courtyard black chickens as materials and can be popularized for the purification of other breeds of green-shell blood-related chickens. Background technique [0002] Improving and improving the quality of eggs has become an important direction in layer breeding research. Eggs with the green shell logo contain large amounts of lecithin, vitamins, amino acids, trace elements, etc., and are loved by consumers. At present, the commercial hybrid green-shell laying hens on the market, although their eggs are mainly green-shelled, the proportion of green-shells ranges from 60 to 90%, and the economic benefits are low. In the old courtyard black chickens, 5% of the chickens produce green shell eggs, and the genotype of the green shell gene is mostly heterozygous in the natural state, which brings difficulties to the uti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K67/027
Inventor 蒋小松杜华锐杨朝武李晴云余春林邱莫寒张增荣李雯
Owner SICHUAN ANIMAL SCI ACAD
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