Cross-breeding method for commercial pigs possessing Meishan pig blood lineage and Berkshire pig lineage

A technology of Berkshire pigs and breeding methods, which is applied in the field of hybrid breeding of commercial pigs and the cultivation of commercial pigs, can solve the problems of reduced reproductive performance and reduced meat quality of varieties, and achieve the goals of fine and soft meat quality, increased growth rate and lean meat rate Effect

Inactive Publication Date: 2015-03-11
昆山市畜牧兽医站 +2
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AI Technical Summary

Problems solved by technology

Since the introduced breed pigs have the characteristics of high lean meat rate and fast growth rate, they account for a large proportion of the world's pig industry. The common hybrid combination is Du Dachang or Du Dachang. The development of the pig industry has played a huge role, but in recent decades, the focus of the world's pig breeding is on the lean meat rate and growth rate, resulting in a decline in the quality of the breed and the reduction in reproductive performance. This problem has attracted more and more attention

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  • Cross-breeding method for commercial pigs possessing Meishan pig blood lineage and Berkshire pig lineage

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Experimental program
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Effect test

specific Embodiment 1

[0021] The Meishan pigs and Berkshire pigs are used to produce hybrid commercial pigs with 50% Meishan pig blood.

[0022] First of all, Berkshire boars and Meishan sows are selected for mating. Inbred or artificial insemination techniques can be used to produce offspring that are hybrid commercial pigs containing 50% Meishan pig blood. The commercial pig has the characteristics of rapid growth, good meat quality and high lean meat rate.

[0023] The commercial pigs have a daily gain of 550-600 grams at a weight of 25-90 kg, a slaughter lean meat rate of about 80 kg is 52%-54%, a feed conversion rate of 3.3-3.5:1, and a meat color score of 3.0-4.5 points. The intramuscular fat content is 3.5% to 4.0%, and the coat color is black.

specific Embodiment 2

[0025] The Meishan pigs and Berkshire pigs are used to produce hybrid commercial pigs with 75% Meishan pig blood.

[0026] With Meishan pig as the female parent and Berkshire pig as the male parent, the female parent and the male parent are selected for mating (inbred or artificial insemination), and the sows born are used as the female parent of the first generation. The pig is the male parent of the first generation, and the female parent of the first generation is mated with the male parent of the first generation (inbred or artificial insemination) to breed commercial hybrid pigs containing 75% Meishan pig blood. The commercial pigs have the characteristics of excellent meat quality, fast growth and strong adaptability.

[0027] In the 25-90 kg weight stage, the daily weight gain of this commercial pig is 490g-550g, the slaughter lean meat rate of about 80 kg is 48%-51%, the feed conversion rate is 3.6-4.0:1, the meat color score is 3.0-4.5 points, intramuscular The fat c...

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Abstract

The invention discloses a cross-breeding method for commercial pigs possessing Meishan pig blood lineage and Berkshire pig lineage. The cross-breeding method comprises the steps of cross-breeding Meishan pigs with Berkshire pigs to breed commercial pigs, or cross-breeding later generations bred by Berkshire boars and Meishan sows with the Meishan boars to breed commercial pigs. The Berkshire pig lineage of foreign pig variety is introduced to appropriately improve the growth speed and lean meat percentage of the cross-bred commercial pigs while an excellent meat quality characteristic and a reproductive characteristic of the Meishan pigs are kept. The growth speed of the commercial pigs is 480 g-600 g every day, the lean meat percentage of each slaughtered pig which is about 80 kilogram ranges from 45% to 55%, the feed conversion rate is 3.3-3.8: 1, the meat color grade ranges from 3.0 to 4.5, and the intramscular fat content ranges from 3.5% to 5.0%.

Description

technical field [0001] The invention relates to a method for breeding commercial pigs, in particular to a method for hybrid breeding of commercial pigs containing Meishan pigs and Berkshire pigs, and belongs to the field of animal husbandry industrial production. Background technique [0002] Meishan pigs are mainly distributed in cities and counties such as Kunshan, Taicang, Jiangsu Province, and Jiading, Shanghai. It is a strain of Taihu pig, an excellent local breed in China. It is large in size, high in fecundity and delicious in meat quality. The highest grade, but the carcass slaughter rate and lean meat rate of Meishan pigs are low. [0003] Berkshire pig is the oldest bred pig breed in the UK. It is famous for its good meat quality. It has a history of more than 300 years and a pure breeding record of more than 200 years. In recent years, Berkshire pigs have gradually developed towards long body and thin fat meat. This breed of pork has excellent quality and is rich...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 杨建生霍永久包文斌华国浩戴志刚
Owner 昆山市畜牧兽医站
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