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Method for breeding Pietrain pigs

A technology of Pietrain and Pietrain, which is applied in animal husbandry and other directions, can solve the problems of homozygous HalNHalN Pietrain carcass traits such as reduced lean meat rate.

Inactive Publication Date: 2010-06-23
SHANGHAI ACAD OF AGRI SCI +1
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Problems solved by technology

[0005] There are also many studies that show that the homozygous HalNHalN Pietrain pigs without the halothane recessive gene have superior meat quality traits such as meat color and tenderness, but the carcass traits of the homozygous HalNHalN Pietrain pigs, such as lean meat percentage, have decreased.

Method used

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  • Method for breeding Pietrain pigs

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Embodiment 1

[0027] Embodiment 1 establishes basic selection breeding population

[0028] The ear tissue samples of Pietrain pigs from the experimental pig farm of the Institute of Animal Husbandry and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, the Pietrain pigs from the breeding pig farm of Shanghai Dajiang Livestock and Poultry Co. [Tan Yongsong, Zhang Siqing, Zhang Zhongming, He Yuying, Liu Honglin, Wang Linyun. Application of PCR-RFLPs detection method in colonization of Pietrain pigs without halothane recessive gene. Shanghai Agricultural Journal, 2001, 17(3): 34-37] reported PCR-RFLPs method for detection of halothane gene in Pietrain pigs.

[0029] And recorded the age of 100kg, feed conversion rate, live backfat thickness, eye muscle area and other indicators of each Pietrain pig in the experimental pig farm of the Institute of Animal Husbandry and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, and calculated the comprehensive selection index S...

Embodiment 2

[0037] Example 2: Introducing Pietrain pig blood with the HalN gene to generate first generation pigs

[0038]The French Pietrain pig semen containing the N gene was imported from France, and the 10 Pietrain sows in the basic breeding population of Example 1 were artificially inseminated according to conventional methods in time to produce one generation, and the PCR-RFLPs method was used to detect one generation Pig Hal gene.

[0039] Results: After testing, a total of 127 piglets were produced, and 19 Pietrain heterozygous piglets with HalN gene were included in the breeding group.

Embodiment 3

[0040] Example 3 Breeding to expand the individual number of HalN gene Pietrain pigs and the emergence of HalNHalN genotype Pietrain pig individuals

[0041] The mating pattern of HalNHaln×HalNHaln was adopted to expand the number of Pietrain pigs containing HalN gene as much as possible, and it was also expected to obtain Pietrain pigs of HalNHalN genotype. At the same time, in order to make full use of the HalN gene of Pietrain boars, the mating pattern of HalNHaln×HalnHaln is also adopted to expand the number of Pietrain pigs containing HalN genes.

[0042] Pietrain boars and sows are cultivated by the combination of ancestry establishment and group subculture, and piglets are born and selected according to the above mating mode, and detailed archives are established for each Pietrain pig. Ear tissue samples were collected from piglets at birth, and the halothane gene and its genotype were detected by PCR-RFLPs; piglets were selected for the first time when they were 28 day...

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Abstract

The present invention discloses a method for breeding Pietrain pigs. The method comprises the following steps: A) a basic breeding group is built, and the group comprises at least one Pietrain pig having HalN genes; B) Pietrain boars and sows are bred for mating and delivering piglets, and at least one pig in the each pair of Pietrain boars and sows has HalN genes according to the mating measures; C) the piglets are bred and selected for breeding, the HalN genes of each piglet are detected, and the Pietrain piglet having HalN genes and the Pietrain piglet having high synthetical selection indexes and HalN genes are used as parent pigs, based on the parent selection measures; D) steps B) and C) are repeated for 5 to 10 times. The HalN gene frequency in Pietrain pig groups can be effectively improved by the method, and the stress reaction of the Pietrain pig groups and the occurrence rate of pale, soft and exudative (PSE) meat are reduced.

Description

technical field [0001] The invention belongs to the technical field of livestock breeding, in particular to a method for breeding Pietrain pigs. Background technique [0002] Pietrain pig is currently the pig breed with the highest lean meat rate. It originated in the Brabant region of Belgium. It was first crossed by Belgian local pigs and French beige pigs, and then introduced into the lineage of British Tamworth pigs. It is a hybrid and was recognized by European countries in 1955. It is a more popular pig breed in Europe in the past ten years. my country introduced Pietrain pigs from France in 1988. It is mainly used as the male parent of binary or triple hybrid production in my country to improve the lean meat percentage of hybrid commercial pigs. [0003] Although the Pietrain pig has a very high lean meat rate, its stress response is severe, and it often dies or has PSE meat (Pale, Soft and Exudative, that is, gray, soft and oozing juice) during transportation. caus...

Claims

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Application Information

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IPC IPC(8): A01K67/02
Inventor 谈永松
Owner SHANGHAI ACAD OF AGRI SCI
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