Cultivation method for new black pig varieties

A breeding method and technology of new breeds, applied in animal husbandry and other fields, can solve the problems of difficult breed conservation work, decrease in pedigree and quantity of Hunan black pigs, poor development and utilization, etc., and achieve rich genotypes and broad pedigrees Effect

Inactive Publication Date: 2015-06-24
XIANGCUN HIGH TECH AGRI INC
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AI Technical Summary

Problems solved by technology

However, after 1999, due to the lack of funds and the lagging of the system in Taoyuan County’s original breeding farm, the results were not well developed and utilized, resulting in a decrease in the blood and number of black pigs in Hunan. By 2004, there were only 39 breeding pigs in the core group. head, 6 bloodlines, making the conservation work into a difficult situation

Method used

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  • Cultivation method for new black pig varieties
  • Cultivation method for new black pig varieties
  • Cultivation method for new black pig varieties

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Experimental program
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Embodiment Construction

[0012] The present invention will be further described below,

[0013] Foundation group formation

[0014] The piglets were selected from the littermate piglets of more than 14 sows in the Taoyuan Black Pig Reserve in Taoyuan County, the place of origin of Taoyuan black pigs, and 59 replacement sows with extensive blood sources were selected from them. The black pig breeding parent group was formed. The breeding parental gene bank was composed of the first-generation high-performance boars of the American Duroc original breed introduced from the United States in 2005 by Hunan Tianxin Original Breeding Farm, and the semen of 10 boars from 10 families of different bloodlines. The inbreeding coefficient of 10 American Duroc boars from Tianxin is 0.00, except for one half-sib mating individual whose inbreeding coefficient is 0.25. According to the data of its own American pedigree, the statistical performance indicators As in Table 1.

[0015] Table 1 Statistics of pedigree d...

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Abstract

The invention provides a cultivation method for new black pig varieties. The cultivation method is characterized in that by the adoption of a two-way cross mode of Duroc boars and Taoyuan black pig sows, Duroc-Taoyuan F1 is synthesized and cultivated to serve as breeding materials, based on crossing fixation, locked breeding and continuous progeny selection are implemented, a generation is finished a year, and moderate generation overlapping is allowed. In the breeding process, locked breeding is implemented, groups are regenerated, first-time pigs are reserved for seed stocks, a generation is finished a year, the boar blood relationship is kept, the excellent characteristics of the boars serving as families and the excellent characteristics of the sows are inherited and fully expanded in later generations, and the excellent new black pig varieties are cultivated.

Description

technical field [0001] The invention relates to breeding of new breeds of livestock and poultry, in particular to a breeding method of new breeds of black pigs. Background technique [0002] For any pig breed, with the advancement of science and technology and the improvement of the degree of breeding, the germplasm performance has been continuously improved or improved. Taoyuan black pig, originally produced in Taoyuan County, Hunan Province, is distributed in the west of Hunan Province. It is characterized by black coat, medium size, strong physique, good reproductive performance, resistance to rough feeding, strong adaptability, strong stress resistance, and excellent meat quality , is a valuable local pig breeding resource. In order to better develop and utilize the pig breed resources, the Taoyuan County Livestock and Poultry Original Breeding Farm and the Hunan Provincial Animal Husbandry Bureau worked during the "Eighth Five-Year Plan" (1991-1995) and "Ninth Five-Yea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/027
CPCA01K67/02
Inventor 刘建杨文莲李静如杨仕柳龚朝霞谭建坤
Owner XIANGCUN HIGH TECH AGRI INC
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