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Cultivation method for green-shelled-egg chicken pure line

A cultivation method and technology for green-shelled laying hens are applied in the field of cultivation of pure line of green-shelled laying hens, and can solve the problems of difficulty in utilization of green-shelled characters, low economic benefit and the like.

Active Publication Date: 2014-08-13
SICHUAN ANIMAL SCI ACAD
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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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  • Cultivation method for green-shelled-egg chicken pure line
  • Cultivation method for green-shelled-egg chicken pure line
  • Cultivation method for green-shelled-egg chicken pure line

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Experimental program
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Embodiment

[0016] The first step, parent selection

[0017] (1) Selection of the female parent: using the hen that lays green-shell eggs among the black chickens in the old courtyard as the material, the genotype (OO and Oo) of the eggs laid by observing the eggshell color is determined, and the individuals heterozygous for the green-shell gene The eggs produced by (Oo) are mixed with white-shelled eggs, and the eggs produced by the homozygous individual (OO) are all green-shelled eggs;

[0018] (2) The selection of the male parent: adopt the method of family selection, take the old yard black chicken cock as material, its genotype is OO, Oo and oo, each cock is mixed with 10 high-yield white-shell hens (genotype is oo) carry out hybridization, and record the egg production situation of each family;

[0019] ①. If the eggs produced by the hens in the family are all white-shell eggs, the genotype of the roosters in this family is oo, that is, they do not have the green shell gene, and th...

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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 pure line breeding method of green-shell laying hens, which uses old-yard black chickens as materials, and can be popularized and used for the purification of other breeds of green-shell blood-related chickens. Background technique [0002] Improving and improving egg quality has become an important direction of laying hen breeding research. Eggs with the green shell logo contain a lot of lecithin, vitamins, amino acids, trace elements, etc., and are loved by consumers. At present, the commercial green-shell hens that are hybridized in the market, although the eggs produced by them are mainly green shells, the proportion of green shells varies from 60 to 90%, and the economic benefits are low. 5% of chickens in Jiuyuan black chickens lay green-shelled eggs, and most of the genotypes of the green-shelled gene are heterozygous in the natural state, which brings difficulties to the ut...

Claims

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Application Information

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Patent Type & Authority Applications(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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