Commercial pork pig multiple crossbreeding method

A technology for supporting lines and hogs, applied in the field of animal husbandry, can solve the problems of slow growth of the first female parent, low lean meat rate, affecting the production efficiency of commercial hogs, etc.
CN103734079AInactive Publication Date: 2014-04-23SHANGHAI XIANGXIN ANIMALS & FOWLS +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI XIANGXIN ANIMALS & FOWLS
Publication Date
2014-04-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a commercial pork pig multiple crossbreeding method. The method comprises the following steps of A) taking Pietrain pig with non-halothane allogene as the first male parent of multiple crossbreeding and Meishan pig as the first female parent of multiple crossbreeding for hybridization to obtain Pietrain-Meishan-crossed hybrid pig; B) taking Duroc pig as the second male parent of multiple crossbreeding and the Pietrain-Meishan-crossed hybrid pig as the terminal female parent of multiple crossbreeding for hybridization to obtain commercial pork pig. According to the commercial pork pig multiple crossbreeding method, the average litter size of multiparity sow of the first female parent of multiple crossbreeding is not less than 14.5; the hybrid high-quality commercial pork pig obtains an average daily gain up to more than 680 g / d (gramme per day) and a lean meat rate up to more than 64% and a feed conversion rate as little as 2.75, avoids PSE (pale-soft-exudative) meat and obtains an intramuscular fat percentage up to 2.5%.
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Description

technical field

[0001] The invention belongs to the technical field of animal husbandry, and particularly refers to a method for selecting a matching line for producing high-quality commercial pork pigs by utilizing local pig breed resources - Meishan pigs. Background technique

[0002] In the 1980s and early 1990s, the United States, the United Kingdom and other countries mainly used Large White pigs, Landrace pigs and Duroc pigs as breeding pigs for the production of "foreign three yuan" meat pigs. After the appearance of the "supporting system", it occupied 80% of the market share in just a few years. The so-called matching line is a breeding system for breeding pigs formed through the determination of combining ability on the basis of systematic pure line selection. The traits of sexual effect, as the specific prominent traits of the strain, are also called specialized strains. Therefore, the breeding of supporting lines is a complex systematic project, and its technic...

Claims

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