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Method for cultivating heterosis complete set line of Baixi pigs

A technology of excellent matching line and white washing pig, applied in the field of white washing pig hybrid matching line, can solve the problems of slow growth rate, small physique, long production cycle, etc., and achieve the effects of developed legs and buttocks, delicious meat and consistent appearance.

Active Publication Date: 2015-12-09
XUANWEI PUJI HAM FOOD
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AI Technical Summary

Problems solved by technology

Although the meat quality of white-washed pigs is relatively good, it has a long production cycle, low fecundity, small size, slow growth rate, low carcass lean meat rate, serious self-propagation and inbreeding, and the genetic diversity is gradually decreasing

Method used

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Embodiment Construction

[0021] Specifically, first, select the basic population of white-washed pigs and establish a core group of white-washed pigs. Using PCR-RFLP technology to screen and purify harmful genes, combined with the characteristics of white-washed pigs such as coat color, select similar Duroc and Sutai pigs as male parents, carry out cross-crossing and fixation, and introduce foreign genes at 25 %, under the condition of ensuring the good quality traits of white-washed pork, improve its reproductive capacity and other production performance, and adopt the group subculture method to cultivate new strains of white-washed pigs.

[0022] On the premise of maintaining the black coat color and excellent meat quality of white-washed pigs, improve the reproductive capacity, growth rate and lean meat percentage of white-washed pigs; adopt methods such as cross-breeding improvement, cross-crossing fixation, group subculture selection, etc. Introduce the white-washed pig population, and measure th...

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Abstract

The invention discloses a method for cultivating a heterosis complete set line of Baixi pigs. The method is characterized by comprising the following operating steps that the excellent characters of the Baixi pigs are selected to promote the improvement of the growth and development performance, the reproductive performance and the meat quality performance; deleterious genes are screened and purified by applying a PCR-RFLP technology, a basic population of the Baixi pigs is selected, and a closed group is supplied to breed selection of the Baixi pigs; the Baixi pigs and Sutai pigs serve as breeding materials to cultivate a synthetic line, and the synthetic line is named as a Bai-Su synthetic line to serve as parental generation sows of the complete set line; the Baixi pigs and Duroc pigs serve as the breeding materials to cultivate a synthetic line, and the synthetic line is named as a Bai-Du synthetic line to serve as parental generation boars of the complete set line; the parental generation sows and the parental generation boars are hybridized to obtain high-quality commercial pigs of the complete set line. According to the complete set line cultivated through the method, the body types and appearance are same, the meat is delicious, the litter size is large, the feed conversion ratio is 3.63 percent, the lean meat percentage is 56.2 percent, and the muscle fat content is 4.81 percent.

Description

technical field [0001] The invention relates to a method for cultivating white-washed pig hybrid lines by using white-washed pigs, Sutai pigs and Duroc pigs. Background technique [0002] Breeds are the key to the development of animal husbandry, and fine breeds are the preconditions for rapid, healthy, stable and sustainable development of animal husbandry. There are countless classic cases in the world of using local pig breeds for breeding. The UK used its local pig breed Leicester pig to cross breed with my country's Guangdong pig breed to breed the world-famous Large Yorkshire pig (LargeYorkshire); Denmark used its local pig breed to breed. Long-term crossbreeding of the pig breed with the Large Yorkshire pig breeds the world-renowned pig breed Landrace (Landrace); the United States uses the local pig breed Duroc (Durol) and another local pig breed Jersey Reds (Jersey Reds) after long-term crossbreeding The world-famous lean pig breed Duroc was bred, and then developed t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 陈世贵陈祥冯文武
Owner XUANWEI PUJI HAM FOOD
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