ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2007, Vol. 38 ›› Issue (9): 888-892.doi:

• 遗传繁育 • Previous Articles     Next Articles

Association between Hinf Ⅰ Polymorphism of Prolactin Receptor (PRLR) Gene and Performance of Dairy Cows

ZHANG Jia-lan;ZAN Lin-sen;SHEN Guang-lei1   

  1. 1College of Animal Science and Technology, Northwest A& F University, Yangling 712100, China；2College of Animal Science, Yangtze University, Jingzhou 434025,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-09-25 Published:2007-09-25

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Abstract: The polymorphism of intron 8 in prolactin receptor (PRLR) gene was detected by PCR-RFLP. A Hinf-I RFLP was detected in intron 8 and the polymorphic locus is common in all detected lines. Association between the founded Hinf-I RFLP in intron 8 and 305 days matured equivalency (ME), fat percent (F%), protein percent (P%), the first mating days (FMD) and the first calving days (FCD) was tested by least square analysis. No significant difference between Hinf-I RFLP and F%, FMD and FCD were founded in present study, but regular effects was showed. Individuals with BB genotype had lower ME (P<0.05) and higher P% (P<0.01). The additive effects of allele A was 296.00 kg/parity, 0.08, -0.14%, 4.55 d/cow, 15.10 d/cow for ME, F%, P%, FMD and FCD respectively. The dominant effects of allele A was 259.80 kg/parity, 0.07, -0.10%, 0.95 d/cow and 4.90 d/cow respectively.