Breeding method of high-yield new-breed of silver-feather chickens laying green-shell eggs

A breeding method, the technology of green-shell layer hens, which is applied in the field of poultry breeding, can solve the problem that it is difficult to see silver feather genes, etc., and achieve the effect of improving egg production performance

Inactive Publication Date: 2014-06-25
JIANGSU INST OF POULTRY SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It may be because chickens with the silver feather gene have white feathers and are not popu

Method used

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Examples

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Effect test

Embodiment 1

[0014] A method for cultivating a high-yielding new strain of silvery feather green-shell layer hens is carried out according to the following steps:

[0015] (1) The F1 generation was produced by crossbreeding hens that lay green eggs from the old black chickens and Hailan brown layer hens;

[0016] (2) The F1 generation is cross-crossed, and the F2 generation is obtained; the pure white feather cock and the pure white feather hen with green eggs are selected from the F2 generation, and the group is self-propagating;

[0017] (3) Use the male and female hens with yellow and red feathers that produce brown-shelled eggs to test cross the above-mentioned pure white-feathered hens that produce green-shelled eggs and pure white-feathered cocks among the above-mentioned self-propagating offspring, identify and screen out the green-shelled and silvery-feathered genes of male and female hens Individuals who are all homozygous, self-propagating groups;

[0018] (4) Repeat step (3) un...

Embodiment 2

[0021] A method for cultivating a high-yielding new strain of silvery feather green-shell layer hens is carried out according to the following steps:

[0022] (1) Using Dongxiang green-shell hens as the female parent to produce F1 generation by crossing with Jinghong No. 1 laying hens parental roosters;

[0023] (2) The F1 generation is cross-crossed, and the F2 generation is obtained; the pure white feather cock and the pure white feather hen with green eggs are selected from the F2 generation, and the group is self-propagating;

[0024] (3) Use the male and female hens with yellow and red feathers that produce brown-shelled eggs to test cross the above-mentioned pure white-feathered hens that produce green-shelled eggs and pure white-feathered cocks among the above-mentioned self-propagating offspring, identify and screen out the green-shelled and silvery-feathered genes of male and female hens Individuals who are all homozygous, self-propagating groups;

[0025] (4) Repeat...

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Abstract

The invention relates to a breeding method of high-yield new-breed of silver-feather chickens laying green-shell eggs. The method includes the following steps that firstly, a hen laying eggs with green shells and a parent-generation female parent cock of a chicken, hatched in an automatic sexing mode, having gold and silver feathers and laying high-yield eggs with red shells are selected from local chicken breeds and are subjected to hybridization to obtain F1 generations; secondly, the F1 generations are subjected to crossing, purely-white-feather cocks and purely-white-feather hens laying eggs with green shells are selected from F2 generations, and self-breeding and breed enlarging are carried out; thirdly, test mating and identification are carried out on hens having purely-white feathers and laying eggs with green shells and cocks with purely-white feathers in later self-breeding generations by a cock having yellow-red feathers and laying eggs with brown shells and a hen having yellow-red feathers and laying eggs with brown shells respectively, individuals of which cock and hen green shell and silver feature genes are homozygotes are selected out, and self-breeding and breed enlarging are carried out; fourthly, the third step is repeated until stable inheritance of sliver feather and green shell characters is achieved; fifthly, the fourth step is repeated until a high-yield new breed of chickens having silver feathers and laying eggs with green shells is obtained. By means of the method, the egg yield can be substantially increased, two-way crossing can be carried out between the high-yield new breed as a female parent and other breeds, and the automatic sexing rate, green shell rate and the like of later generations can reach 100%.

Description

technical field [0001] The invention belongs to the technical field of poultry breeding, and in particular relates to a method for cultivating a new high-yielding strain of silver-colored and green-shell laying hens. Background technique [0002] Many local chicken breeds in my country have individuals that produce green-shell eggs, such as Jiuyuan black chicken, Dongxiang green-shell layer, Macheng green-shell layer, Lushi chicken, etc. These chicken breeds are both egg and meat, and the number of eggs is low. [0003] At present, the sex-linked genes that can be used for self-sexing of newborn chicks mainly include fast and slow feather genes, horizontal spot genes, and gold and silver genes. Most of the local chicken breeds that have not been systematically selected in my country have the slow feather gene, and a few have the horizontal spot gene. It may be because chickens with the silver feather gene have white feathers and are not popular with consumers, so it is dif...

Claims

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Application Information

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IPC IPC(8): A01K67/027
Inventor 王克华李尚民曲亮窦套存沈曼曼郭军
Owner JIANGSU INST OF POULTRY SCI
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