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A kind of breeding method of laying hen strain with higher egg dry matter content

A technology of substance content and cultivation method, which is applied in animal husbandry and other directions to achieve the effect of good egg-laying performance

Active Publication Date: 2016-04-06
SUZHOU XINLIAN POULTRY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no report on the breeding technology for improving the dry matter content of eggs by improving the strains of layer hens

Method used

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  • A kind of breeding method of laying hen strain with higher egg dry matter content
  • A kind of breeding method of laying hen strain with higher egg dry matter content

Examples

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Effect test

example 1

[0025] Example 1: Breeding laying hen breeds with high egg dry matter content using local chicken breeds in my country as materials

[0026] 1. Establishment of breeding materials: Huainan Ephedra chicken, a local chicken breed in my country, is a type of both egg and meat chicken. The egg production of the unselected flock at 40 weeks old is >80, and the egg production performance is good. The dry matter of eggs at 40 weeks old is 27.29± 2.28, the coefficient of variation is as high as 8.4%, which meets the requirements of the breeding material of the present invention, and the chicken breed is used as the breeding material to carry out generation selection breeding for the traits of egg dry matter content.

[0027] 2. Strain selection:

[0028] (1)F 0 Establishment: Introduce 120 roosters and 1,000 hens from Huainan Ephedra chicken as the 0th generation. At 17 weeks, those who are too large or too small, have poor sexual maturity, and have mixed coat colors are eliminated. ...

example 2

[0044] Example 2: Using laying hen strains as materials, breed laying hen strains with high egg dry matter content.

[0045] 1. Establishment of breeding materials: the inventor introduced 25% Roman brown-shell hen blood into the imperial concubine chicken, and after two generations of selective breeding on the appearance and egg production of chickens and eggs, a higher-yielding layer was preliminarily formed. Featured laying hen strains for egg volume. Before implementing the breeding program of the present invention, the 40-week-old egg production of the strain was more than 100, the dry matter of the eggs was 25.33±2.29, and the coefficient of variation was as high as 9.04%. According to the conditions required by the breeding material of the present invention, the line is used as the breeding material, and the generation selection of the dry matter content of eggs is carried out on it. .

[0046] 2. Strain selection:

[0047] (1)F 0 Establishment: Introduce 150 male c...

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Abstract

The invention relates to a method for breeding laying hens, in particular to a method for breeding the laying hens with the high egg dry matter content. Comprehensive selecting indexes with the formula being I= A1*a1 / P1+A2*a2 / P2+A3*a3 / P3 are established with the 40-week egg yield character (a1), the 40-week egg weight character (a2) and the 40-week egg dry matter content character (a3) as main selecting characters, wherein A1, A2 and A3 represent the economy weighing weights of the character a1, the character a2 and the character a3 respectively, and P1, P2 and P3 represent the observing group average phenotypic values of the character a1, the character a2 and the character a3; the egg dry matter content is improved by 0.57-0.73 percent point through breeding of two complete generations, the increasing range reaches to 2.09-2.87 percent, and the egg dry matter content is higher than that of eggs by 3-5 percent points. The number character breeding principle and the limiting character breeding principle are utilized, the egg dry matter content is improved generation by generation while the egg yield and the egg weight of the egg group are improved or maintained, and the laying hens with good egg laying performance and high egg nutrient substance enrichment degree are bred.

Description

technical field [0001] The invention relates to a method for cultivating laying hen strains, in particular to a method for cultivating laying hen strains with higher egg dry matter content. Background technique [0002] Eggs with higher dry matter content of eggs indicate that the higher the nutrient enrichment of eggs, the higher the nutritional value of eggs, the higher the sales price of fresh eggs, and the higher the income of chicken farms. In addition, for egg deep-processing enterprises, the higher the dry matter content of eggs, the higher the efficiency of processing the same weight of egg liquid into egg powder. important economic value. [0003] The inventor has learned through a large number of studies that there is a significant difference in the dry matter content of eggs between different laying hen varieties, and the dry matter content of eggs of my country's local chickens (earth hens) is about 26-28% on average, while foreign laying hens (foreign laying he...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K67/02
Inventor 姜润深时丹郭兴南花婷周骏万意周帮园刘家荣司绍宏
Owner SUZHOU XINLIAN POULTRY IND