ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2009, Vol. 40 ›› Issue (2): 166-172.doi:

• 遗传繁育 • Previous Articles     Next Articles

Study on Association of Restriction Fragment Length Polymorphisms of Fatty Acid Synthase Gene with Carcass， Liver Performance and Fat Deposit Traits in Landes Goose

KUANG Zhi-xiang1，HE Da-qian2*，LIU Yi-ping1，ZHU Qing1*   

  1. 1.College of Animal Science and Technology， Sichuan Agricultural University， Ya′an 625014， China;2.Institute of Animal Husbandry and Veterinary Medicine， Shanghai Academy of Agricultural Sciences， Shanghai 201106， China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-02-24 Published:2009-02-24

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Abstract: The aim of this study was to investigate polymorphism of fatty acid synthase (FAS) gene promoter region in Landes goose. Polymorphisms were detected by restriction fragment length polymorphisms(RFLP) and enzyme AfaⅠwas used. Three AfaⅠdigestion sites (locus A， B and E) were detected in Landes goose. The χ2-test was performed to examine the HardyWeinberg equilibrium (HWE). Three sites significantly deviated from HWE. The least square analysis showed that living weight， weight gain at feeding increase stage， carcass weight， halfeviscerate weight， eviscerate weight， breast muscle weight and leg muscle weight of individuals with genotype FASEE were higher than that of individuals with genotype FASee 12.78%-19.67% （P＜0.05） at loci E and B. Locus A had no significant effects on carcass traits except for breast muscle weight（P＞0.05）. Fatty liver performance of individuals with FASAa and FASBb were better than that of individuals with homozygote at loci A and B， but the liver weight of individuals with genotype FASEE was higher than that of individuals with heterogenesis 33.09％（P＜0.05）at locus E. Three loci had no significant effects on fat deposit traits.