Method of purification selection breeding of Pingwu red chicken

A technology of Pingwuhong chicken and Pingwuhong, which is applied in the field of poultry breeding, can solve the problems of loss of biodiversity, poor appearance, protection and utilization of unfavorable local chicken breeds, etc., and achieve the effect of uniform production performance

Inactive Publication Date: 2017-09-08
绵阳市农业科学研究院
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Problems solved by technology

Regrettably, due to the characteristics of fast growth and large size of good chickens such as AA and Aviyin abroad, many places in China hybridize them with local chicken breeds, resulting in a rapid decline in the purity of local chicken breeds, significant differences in weight, and poor appearance. , is not conducive to the protection and utilization of local chicken breeds, and the loss of biodiversity needs to be solved urgently

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  • Method of purification selection breeding of Pingwu red chicken
  • Method of purification selection breeding of Pingwu red chicken
  • Method of purification selection breeding of Pingwu red chicken

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Embodiment 1

[0023] A method for purifying and breeding Pingwu red chickens, comprising the following steps:

[0024] 1) Egg collection and hatching: The collected eggs came from 9 townships in Pingwu County with good isolation conditions and unhybridized farmers, and the overall characteristics of the chicken flocks were basically the same. The egg weight of the collected eggs is 48g-52g, and the egg shape index is between 1.35-1.52. Select the eggs with smooth surface, and remove the sand-shell eggs, double-yolk eggs, round eggs and eggs whose egg weight does not meet the requirements. The eggs were fumigated and surface sterilized more than once, and incubated at a constant temperature (T=37.8°C, H=60%).

[0025] 2) Feeding management: Breed in cascading brooding cages during the brooding period of 1-45 days, transfer to the young chicken coop for online flat rearing at 46-120 days of age, limit feeding after 90 days of age; The breeding chickens are transferred to the breeding hen hou...

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Abstract

The invention discloses a method for purifying and breeding Pingwu red chickens. The phenotypic breeding method of large population and high elimination is adopted, and through individual phenotype selection, individuals with non-population-preserving characteristics such as feather color, shank color and skin color are screened out. In order to achieve the improvement of population consistency. After selection, the phenotypic heterozygosity rate of Pingwu red chicken decreased from 31.38% of G0 generation to 1.55%, 0.88% and 0.34% of G1, G2, G3 generation respectively, and the appearance consistency of Pingwu red chicken population was significantly improved; The fertilization rate of Pingwu red chicken breeding eggs has increased from 81.1% to 91.23%, and the hatching rate has also exceeded 85%. Judging from the results of population size measurement and body weight measurement, the group consistency has been significantly improved. This method of purification and breeding has the advantages of fast purification speed and good effect. After three generations of breeding, the purity of Pingwu Red Chicken has been significantly improved, laying a foundation for the conservation, excavation and utilization of Pingwu Red Chicken.

Description

technical field [0001] The invention belongs to the field of poultry breeding, and in particular relates to a method for purifying and breeding Pingwu red chickens. Background technique [0002] China is one of the countries with the richest chicken breed resources and the earliest domestication. There are 22 national-level local chicken breeds included in the "National Livestock and Poultry Genetic Resources Protection List" of the Ministry of Agriculture in 2014, and there are more than 100 chicken breeds in other places. indivual. The "National Broiler Genetic Improvement Program (2014-2025)" predicts that more than 40 new broiler breeds will be bred by 2025, so it is very important to make good use of local chicken germplasm resources. Regrettably, due to the characteristics of fast growth and large size of good chickens such as AA and Aviyin abroad, many places in China hybridize them with local chicken breeds, resulting in a rapid decline in the purity of local chicke...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 王育伟李廷见张晓晖周爱民王毅肖龙
Owner 绵阳市农业科学研究院
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