ACTA AGRICULTURAE BOREALI-SINICA ›› 2012, Vol. 27 ›› Issue (5): 38-43. doi: 10.3969/j.issn.1000-7091.2012.05.008

Special Issue: Animal husbandry Biotechnology

Previous Articles     Next Articles

Fec~B Mutation of BMPR-IB Gene and Its Association with Litter Size and Growth Traits in Small Tailed Han Sheep

YANG Yu-ze1, FENG Tao2, CHU Ming-xing3, YUN Peng1, XIAO Wei1, XUE Zhen-hua1, ZHANG Jin-tao4, MENG Dan-na4   

  1. 1. Beijing Municipal Animal Husbandry & Veterinary General Station Beijing 100107 China ;

    2. Institute of Animal Husbandry and Veterinary Medicine Beijing Academy of Agriculture and Forestry Science Beijing 100097 China;

    3. Institute of Animal Science Chinese Academy of Agricultural Sciences Beijing 100193 China;

    4. Beijing Shengshifumin Muslim Limited Liability Company Beijing 102200 China
  • Received:2012-08-10 Published:2012-10-28

Abstract: The blood samples of Small Tailed Han sheep reared in Beijing suburb area and the nucleus flock with high fecundity of Small Tailed Han sheep were collected to detect the FecB mutation of BMPR-IB gene by PCR-RFLP and analysis the effects of different BMPR-IB genotypes on litter size of the ewes in the two flocks as well as the effects of different genotypes on growth and development in offspring of the nucleus flock.The results showed that genotype frequencies of BB,B+ and ++ of BMPR-IB gene was 0.34,0.56 and 0.10 in Small Tailed Han sheep reared in Beijing suburb area,respectively,and was 0.47,0.48 and 0.05 in the core group with high fecundity,respectively.The litter size of Small Tail Han sheep reared in Beijing suburb area with BB,B+ and ++ genotypes was 2.72,2.16 and 1.74,while litter size of ewes with BB,B+ and ++ genotypes in core group was 3.20,2.57 and 2.07,respectively.Before 90 days,average daily gain(ADG) of the lambs with different genotypes reached a maximum,especially in lambs with B+ genotype.After 120 days,the growth rate of lambs with different genotypes showed no significant difference.Concerning the body size index,the growth of body length and chest circumference were more than body height in female lambs with B+ genotype which showed better growth potential.These results suggested that BMPR-IB gene was the major gene affecting litter size in Small Tail Han sheep,and was no obvious influences on growth and development.The FecB mutation could be used to breed new strain of Small Tailed Han sheep with super prolificacy,as well as to breed new sheep breeds with high prolificacy and in mutton production.

Key words: Small, Tailed Han sheep, BMPR-IB gene, Litter size, Growth and development

CLC Number: 

Cite this article

YANG Yu-ze, FENG Tao, CHU Ming-xing, YUN Peng, XIAO Wei, XUE Zhen-hua, ZHANG Jin-tao, MENG Dan-na. Fec~B Mutation of BMPR-IB Gene and Its Association with Litter Size and Growth Traits in Small Tailed Han Sheep[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2012, 27(5): 38-43. doi: 10.3969/j.issn.1000-7091.2012.05.008.

share this article