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Method for cultivating novel Dingyuan pig breed

A cultivation method and new strain technology are applied in the field of breeding new pig strains to achieve the effects of good meat quality, obvious effect and high lean meat rate

Inactive Publication Date: 2013-04-10
ANHUI AGRICULTURAL UNIVERSITY
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  • Abstract
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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 dual-purpose pig breed has been bred for a long time in the Jianghuai hilly area. It is mainly distributed in the Jianghuai hilly area of ​​Anhui Province. There are three types of Dingyuan pigs, namely, big fold skin, Erxi skin (cucumber strips), and oil gourd. The big pleated skin is larger, the oil gourd is smaller, and the second thin skin (cucumber strip) is medium in size. The existing ones are mainly Erxipi (cucumber strips). Its physical characteristics are: medium and narrow body shape, strong physique, black coat, and dense brown fluff in winter; the head is light, the face is flat, the mouth is straight and long, the forehead and the head are streamlined, and the forehead is thick. Rhombus-shaped wrinkles, large ears drooping to the corner of mouth, slender neck; straight back and waist, sloping hips, some with sunken waist, wide and flat buttocks; s...

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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 strain of pig, in particular to a method for cultivating a new strain of Dingyuan pig. Background technique [0002] my country is the largest pig production and pork consumption country in the world, and almost half of the pigs in the world are raised in China. Pork is a traditional source of meat in my country, accounting for about 66% of meat consumption. Due to the problem of breeding technology, the high-quality lean-meat breeding pigs demanded by the Chinese market have long relied on imports, and the breeding of fine breeds is in a bad cycle of "introduction → maintenance → degradation → re-introduction". The high lean meat percentage, high growth rate and feed efficiency of Duroc pigs, Large White pigs and Landrace pigs and their supporting cross combinations have become the dominant mode of commercial pig production in my country. However, the poor meat quality and low fecundity of these...

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Application Information

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