Method for breeding recessive white-feather short-foot green-shell high-yield laying hens

A technology of recessive white feathers and breeding methods, applied in the field of breeding, can solve the problems of mixed feather color and difficult to purify, difficult to purify feather color, affecting the sales of eliminated hens, etc., to reduce workload, improve efficiency, and achieve high egg production. Effect

Inactive Publication Date: 2019-02-12
湖北欣华生态畜禽开发有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the currently cultivated green-shell hens generally have colored feathers. After crossing with other native chickens, the offspring will have mixed feather colors and are not easy to purify (feather color inheritance is relatively complicated, and feather color purification requires a long process), which affects egg production. At the end, the sales of hens will be eliminated, which greatly limits the application of green-shell layer hens, a high-quality local chicken breed resource, in breeding breeding (feather color is difficult to purify)

Method used

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  • Method for breeding recessive white-feather short-foot green-shell high-yield laying hens

Examples

Experimental program
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Effect test

Embodiment 1

[0025] The green-shell gene of the green-shell layer is introduced into the recessive white-feathered bantam population, and the recessive white-feathered bantam roosters and hens carrying the homozygous green-shell gene are obtained through hybridization and test crossing. The specific steps are as follows:

[0026] (1) Green-shell gene introduction: Use green-shell egg males and hens (homozygous colored feathers, normal body shape, carrying homozygous green-shell genes) to carry out with recessive white-feathered bantam males and hens (powder-shell eggs) respectively. For reciprocal crossing, 1,580 bantam hens (heterozygous colored feathers, laying green eggs) were selected from the orthogonal combination, and 124 roosters (heterozygous colored feathers, heterozygous normal body shape) were selected from the reciprocal and reciprocal combination. Next breeding use.

[0027] (2) Intercrossing of the F1 generation: the roosters and bantam hens selected from the F1 generation w...

Embodiment 2

[0031] The cock and hen that carry the homozygous green-shell gene obtained in Example 1 are used to set up a family line, and through family selection and individual selection, breeding and expansion are carried out, and recessive white feather bantam green-shell high-yielding laying hens are cultivated.

[0032] In the F2 generation, recessive white-feathered bantam males and hens carrying homozygous green-shell genes were selected to construct multiple families, and breeding eggs were produced by mating within each family;

[0033] Determine the fertilization rate of each family and the eggs of each hen, eliminate 5% of the families with the lowest fertilization rate, and eliminate the 5% hens with the lowest fertilization rate in other families;

[0034] At the age of 6 weeks, 20% of the individuals will be eliminated according to their appearance and weight;

[0035] At the age of 18-20 weeks, chicken pullorum and chicken leukemia are tested, and positive chickens are eli...

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Abstract

The invention relates to a method for breeding recessive white-feather short-foot green-shell high-yield laying hens. Green-shell genes of the green-shell laying hens are introduced into recessive white-feather short-foot chicken population, recessive white-feather short-foot cocks and hens with homozygous green-shell genes are obtained through hybridization and test mating, the obtained recessivewhite-feather short-foot cocks and hens with the homozygous green-shell genes are utilized for forming a family, breeding and population expanding are conducted through family selection and individual selection, and the recessive white-feather short-foot green-shell high-yield laying hens are bred. By means of the method, the recessive white-feather short-foot green-shell laying hens with high egg laying yield and genetic stability can be bred.

Description

technical field [0001] The invention relates to the field of breeding technology, in particular to a method for breeding laying hens. Background technique [0002] my country's local chicken breeds are rich in resources, with outstanding advantages and distinctive features. For example, green-shelled laying hens produce green-shelled eggs with high nutritional value, which are rich in lecithin, amino acids, vitamins, and trace elements (iodine, zinc, selenium, etc.) etc.), is a good nutrition product with a higher market price. my country's egg production has gradually reached a balance between supply and demand, and is changing from quantity-based to quality-based. The market share of foreign white-shell and brown-shell laying hens is gradually decreasing, while the production and consumption of local high-quality laying hens are growing rapidly. In recent years, the development speed The market demand has promoted the development of local high-quality chicken breeding. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 龚炎长吴文平张二翼
Owner 湖北欣华生态畜禽开发有限公司
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