Method for breeding lean swine

A technology of lean meat type and lean meat rate, applied in the field of animal genetics and breeding, can solve problems such as unsuitable market demand

Inactive Publication Date: 2012-10-24
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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Problems solved by technology

However, as far as the improvement of pig breeds in my country is concerned, it is still not suitable for the development

Method used

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  • Method for breeding lean swine
  • Method for breeding lean swine
  • Method for breeding lean swine

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Experimental program
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Embodiment Construction

[0027] 1. Parent selection

[0028] 1) Female parents: the breeds are Suzhong Pig Line 1 and Line 2, which passed the New Variety Approval of Jiangsu Province in 2001. In addition to Jiangsu Province, the promotion areas also include Anhui, Shanghai, Zhejiang, Jiangxi, Fujian and Yunnan provinces and cities. Su Zhong 1 series has a white coat and more than 15 effective nipples. The average adult boar weighs 155 kg and the average adult sow weighs 163 kg. The litter size of sows is 14.35, the average daily gain in the 30-90 kg stage is 619 grams, and the age of 90 kg is 177 days. The lean meat rate of 90 kg carcass is 54.32%, and the weight gain ratio of consumption and feed is 3.23:1. The whole body of Suzhong 2 series is white in hair, with more than 15 effective teats; the weight of adult boars is 153 kg, and the weight of adult sows is 172 kg. The litter size of sows is 14.25, the average daily gain of 30-90 kg is 635 grams, the age of 90 kg is 175 days, the lean meat ra...

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Abstract

The invention relates to a method for breeding lean swine, and belongs to the field of genetic breeding of animals. Suzhong swine of series 1 and 2 is taken as a female parent, famous foreign British large white swine with high growth speed and high lean yield is taken as a male parent, and the lean swine is hybridized and synthesized by using a modern genetic breeding theory and an advanced breeding means. Breeding standards comprise white whole-body clothing hair, a littering size of more than 13, daily gain of 810g and carcass lean yield of over 60 percent. Compared with the Suzhong swine of the series 1 and 2, the growth speed, lean yield and the like of the bred lean swine are remarkably improved.

Description

[0001] 1. Technical field [0002] The invention relates to a breeding method for breeding lean pigs, belonging to the field of animal genetics and breeding. 2. Background technology [0003] It is the development trend of the world's pig industry to adopt hybridization to produce miscellaneous high-quality pigs and raise lean commercial pigs. Some new breeds (strains) of lean meat have been successfully bred in succession around the world, such as Lacombe, Sierra pigs, Dekappa pigs, etc., with a lean meat rate of over 60%; the world-famous Landrace and Large White pigs, Production performance has been improved. For example, the leg-to-arm ratio and carcass lean meat rate of the new strains of Large White pig No. 12 and No. 16 bred by the British PIC company have increased by 14% and 9.9% respectively, and the lean meat rate of Danish Landrace pig has increased to more than 63%. . However, foreign lean breeds (strains) have disadvantages such as low litter rate, poor meat...

Claims

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Application Information

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IPC IPC(8): A01K67/027
Inventor 任守文王学敏方晓敏李碧侠葛云山
Owner JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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