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Molecular marker influencing feed conversion ratio character of pig and application

A feed conversion rate and molecular marker technology, applied in the field of molecular marker-assisted selection technology and animal genetics and breeding, can solve the problem of rare identification of molecular markers, and achieve the effects of increasing core competitiveness, saving food and reducing production costs of enterprises

Active Publication Date: 2016-06-01
SOUTH CHINA AGRI UNIV
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Problems solved by technology

[0006] However, feed conversion rate is the primary trait in the genetic improvement of breeding pigs, but few molecular markers related to feed conversion rate have been identified in the Duroc pig population

Method used

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  • Molecular marker influencing feed conversion ratio character of pig and application
  • Molecular marker influencing feed conversion ratio character of pig and application
  • Molecular marker influencing feed conversion ratio character of pig and application

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Experimental program
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Embodiment 1

[0027] 1. Experimental animals

[0028] The experimental pig group used in the present invention is the purebred Duroc and its synthetic line group of the breeding pig branch of Guangdong Wen's Food Group Co., Ltd., which is the core group of the breeding pig branch.

[0029] In this experiment, a total of 324 Duroc boars from the resource group were selected. When each individual was between 30kg and 100kg in weight, the Austrian breeding pig production performance measurement system was used for data collection.

[0030] Duroc pigs have a small number of litters, with an average of only 9 to 10 pigs in a large group, but they grow fast, have a high feed conversion rate, a high lean carcass rate, a high intramuscular fat content, and a strong resistance to stress. Domestic commercial pig production has established a relatively mature hybrid supporting system. Among them, the hybrid combination of Du Changda continues to maintain an absolute dominant position in my country's domesti...

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Abstract

The invention discloses a molecular marker influencing the feed conversion ratio character of a pig and application, and belongs to the technical field of marker-assisted selection technologies and genetic breeding. The molecular marker is obtained through the genome-wide association study (GWAS), the nucleotide sequence of the molecular marker is shown in SEQ ID NO:1, the C>A nucleotide single-base mutation (named as g.690C>A) is located at the 690bpth position of the genomic sequence of the pig, and the feed conversion ratio character of the pig is remarkably influenced through mutation. The invention discloses preparation and application of the molecular marker.

Description

Technical field [0001] The invention relates to the technical fields of molecular marker-assisted selection technology and animal genetic breeding, in particular to a molecular marker that affects the traits of pig feed conversion rate and its application. Background technique [0002] In 2014, the world's total pork production reached 110 million tons, and China's pork production ranked first, accounting for 51.3% of the world's total production. In addition, pork is the main source of meat in China, and the pig breeding industry occupies a pivotal position in my country's animal husbandry industry. In addition, since the 1980s, pork has always been the main meat on the table of urban and rural residents. Pork consumption by urban and rural residents has always accounted for more than 60% of meat consumption, and it has always occupied a dominant position. Pork consumption is irreplaceable. Its safety and effective supply are not only a major event related to the vital interest...

Claims

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Application Information

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IPC IPC(8): C12N15/11C12Q1/68
CPCC12Q1/6888C12Q2600/124C12Q2600/156
Inventor 杨杰吴珍芳丁荣荣刘德武蔡更元顾婷郑恩琴
Owner SOUTH CHINA AGRI UNIV
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