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Method for culturing high-quality efficient stress-resistant complete set line of large white pigs

A breeding method and technology of supporting lines, which are applied in the field of breeding high-quality and high-efficiency large white pig stress resistance supporting lines, can solve the problem of not establishing an evaluation system for pig immune response ability, etc., so as to improve immune response ability, improve general disease resistance, Increases the effect of special disease resistance

Inactive Publication Date: 2011-06-08
YANGZHOU UNIV
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Problems solved by technology

It is obviously feasible to improve the overall resistance to infectious diseases by breeding methods that improve antibody and cellular immune responses, but so far there has been no evaluation system for pig immune response capabilities to achieve disease resistance by improving pig immune response capabilities Breeding is still in the exploratory stage

Method used

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  • Method for culturing high-quality efficient stress-resistant complete set line of large white pigs
  • Method for culturing high-quality efficient stress-resistant complete set line of large white pigs
  • Method for culturing high-quality efficient stress-resistant complete set line of large white pigs

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Experimental program
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Embodiment Construction

[0030] 1. Build a basic group

[0031] Using molecular breeding technology and conventional breeding methods, using the genetic markers that have been used so far, to test the halothane gene (RYR1 gene) and the gene related to diarrhea and edema in weaned piglets (FUT1 gene), and eliminate the halothane-carrying pigs. After gene individuals, further according to the FUT1 gene detection results, select FUT1 gene AA allele (resistance type) individuals for matching ( figure 1 ), and the progeny were verified against F18 E. coli infection by in vitro adhesion test and in vivo colonization test (ie, challenge test) ( figure 2 ), and then continue to select and fix the disease-resistant individuals. Focus on the candidate gene strategy, comprehensively consider the traits such as birth weight, weaning weight and growth speed, and establish a basic group of large white pigs that are resistant to diarrhea and edema in weaned piglets.

[0032] The screening of individuals with...

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Abstract

The invention relates to a method for culturing a high-quality efficient stress-resistant complete set line of large white pigs, which comprises the following steps of: building a basic group based on gene identification and disease resistance verification of F18 colibacillosis resistant major genes FUT1M307 of a core group, and culturing the high-quality efficient stress-resistant complete set line of the large white pigs by combining immunology principle, molecular breeding technology and conventional breeding means and using a candidate gene strategy. The complete set line pigs have the advantages of stress resistance, strong environmental adaptability, weaned piglet diarrhea and edema disease resistance, high lean meat rate, excellent meat quality, high feed reward and high birth number.

Description

technical field [0001] The invention belongs to the technical fields of animal genetics, breeding and reproduction, and molecular biology, and in particular relates to a method for cultivating high-quality and high-efficiency Large White pig stress-resistant matching lines. Background technique [0002] Since the founding of the People's Republic of China, especially since the reform and opening up, great progress has been made in the introduction, breeding and utilization of foreign breeds of pigs, which have greatly improved the national pig slaughter rate (62.1% in 1980 and 129.9% in 2003), carcass weight (1980 was 129.9%), 57.1kg in 2003, 76.6kg in 2003), carcass lean meat percentage, improved seed coverage and economic benefits played an important role. Looking at the current large-scale lean-meat pig breeding system in the domestic pig industry, foreign three-way hybrid commercial pigs have an absolute advantage. The implementation, the establishment of artificial ins...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02
Inventor 吴圣龙包文斌朱国强黄小国曹永忠王桂军叶兰朱璟潘章源孙寿永訾臣刘璐侯小亮
Owner YANGZHOU UNIV
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