FSH β基因的多态性分布及其对大白猪产活仔数的影响

›› 2010, Vol. 37 ›› Issue (8): 142-145.

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Polymorphism of the FSH β Gene and its Association with the Number Born Alive Trait in Large White

LIU Yuan¹，LI Liang-liang¹， MO Xiao-yu²，WANG Zhen-hua³，LI Wen-xian³，LEI Ming-gang¹

(1.College of Animal Science and Technology,Huazhong Agricultural University,Wuhan 430070,China; 2.Yichang Chia Tai Co.Ltd.，Yichang 443000,China; 3.Hubei Tianzhong Stockbreeding Co.Ltd.,Wuhan 430344,China)

Received:1900-01-01 Revised:1900-01-01 Online:2010-08-20 Published:2010-08-20
Contact: LEI Ming-gang

Abstract

Abstract: To study the genetic effect of forllicular-stimulating hormone beta subumit (FSHβ) on the number born alive (NBA) trait and its application in pig reproduction trait selection, the polymorphism of FSH β was detected by the method of PCR and association analysis between different genotypes and NBA trait were carried out in 802 Large white sows with 3418 parities from two commercial breeding pig companies which were Hubei Tianzhong and Yichang Zhengda. The frequency of A allele was 0.447 in the Hubei Tianzhong sows population and 0.312 in the Yichang Zhengda sows population. It was demonstrated that the effect of different genotypes of FSH β loci on the NBA was AB＞BB＞AA at the first parity, AA＞AB＞BB at the second parity and AB>AA>BB at the later parities and all parities, respectively, but no significance was found between different genotypes. The results showed that the effect of A allele was better than B allele on the NBA in large white. The sows of AA genotype have more NBA than the sows of other genotypes. Thus, increasing the number of sows with AB genotype on the FSH β loci might bring us more litter pigs in commercial pig production.

Key words: Large white; FSH β; number born alive

CLC Number:

LIU Yuan;LI Liang-liang;MO Xiao-yu;WANG Zhen-hua;LI Wen-xian;LEI Ming-gang. Polymorphism of the FSH β Gene and its Association with the Number Born Alive Trait in Large White[J]. , 2010, 37(8): 142-145.

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Polymorphism of the FSH β Gene and its Association with the Number Born Alive Trait in Large White

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