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Method for cultivating novel Dingyuan pig breed

A method for cultivating new strains and a technology for new strains, which are applied in the field of cultivating new strains of pigs to achieve the effects of obvious effects, strong stress resistance and high fecundity.

Inactive Publication Date: 2011-06-29
ANHUI AGRICULTURAL UNIVERSITY
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Problems solved by technology

The application of molecular genetic markers in marker-assisted selection and marker-assisted introgression is still in the research stage due to various reasons. In addition, litter size traits are greatly affected by environmental and other factors, and more efforts are needed to study the breeding methods for litter size. and development

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  • Method for cultivating novel Dingyuan pig breed
  • Method for cultivating novel Dingyuan pig breed
  • Method for cultivating novel Dingyuan pig breed

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Embodiment

[0078] Dingyuan pig

[0079] With Dingyuan County in Anhui Province as the central production area, the meat and fat pig breeds formed by selection and breeding have been raised for a long time in the Jianghuai hilly area. Mainly distributed in Jianghuai hilly area in Anhui Province. Dingyuan pig has three body types, namely large fold skin, two thin skin (cucumber strips), and oil gourd. The large fold skin is larger, the oil gourd is smaller, and the second thin skin (cucumber strip) is of medium size. Existing mainly two thin skins (cucumber strips), its physical characteristics: medium and narrow body, strong physique, black coat, dense brown hair in winter; light head, flat face, straight mouth, streamlined forehead and head, Rhombic wrinkles, large ears drooping to the corners of the mouth, and a slender neck; the back and waist are straight and slanted, some waist is sunken, and the buttocks are broad and flat; the limbs are firm, often the hind limbs are higher than the...

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Abstract

The invention provides a method for cultivating a novel Dingyuan pig breed, which relates to a method for cultivating a novel pig breed. The invention provides the method for cultivating the novel Dingyuan pig breed which has the advantages high fecundity, good meat quality and strong stress resistance of Dingyuan pigs as well as the characteristics of fast growth, high lean meat percentage and the like of imported pigs. The method comprises the following steps: a Dingyuan sow is hybridized with a novel USA strain Duroc boar to cultivate a first generation sow core group; second grading hybridization is performed to the first generation sow core group and a Dingyuan boar or the novel USA strain Duroc boar; from the third generation, group closure propagation and breeding are adopted respectively, and crossing of two to three generations is performed; and selection and remaining are performed through methods of comprehensive selection indexes and molecule marking assistance selection to form the novel Dingyuan pig breed, namely a novel breed of Wan Huai pigs and a novel breed of Dingyuan-Duroc pigs.

Description

Technical field [0001] The invention relates to a method for cultivating a new line of pigs, in particular to a method for cultivating a new line of Dingyuan pigs. Background technique [0002] my country is the world's largest pig production and pork consumption country. Almost half of the world's pigs are raised in China. Pork is the source of traditional meat food in my country, accounting for about 66% of meat consumption. Due to breeding technology problems, the high-quality lean-meat breeding pigs demanded by the market in my country have long relied on imports. The breeding of high-quality breeds is in a bad cycle of "introduction→maintenance→degeneration→reintroduction"; The high lean meat rate, high growth rate and feed efficiency of Duroc pigs, large white pigs and Landrace pigs and their supporting hybrid combinations have become the dominant mode of commercial pig production in my country. However, the poor meat quality and low fecundity of these imported pig breeds ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 陈宏权陈华
Owner ANHUI AGRICULTURAL UNIVERSITY
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