摘要
运用PCR-SSCP法检测187头姜曲海母猪的FSHβ亚基基因的多态性,分析该基因对产仔数、初生重、20日龄重及乳头数等性状的影响。结果表明:FSHβ基因型间总产仔数和产活仔数差异显著,nn基因型母猪头胎总产仔数和产活仔数分别比NN基因型多1.70和1.44头·胎^(-1),经产胎次比NN基因型分别多1.20和1.22头·胎^(-1)。3种基因型后代初生重和20日龄重差异显著,Nn基因型后代显著高于NN和nn型;3种基因型间乳头数差异显著。因此,FSHβ基因完全可作为产仔数性状的辅助选择标记,有望获得较大的综合效果。
FSHβ gene polymorphisms of Jiangquhai pig were detected by using the method of PCR-SSCPs to determine whether FSHβ influenced litter size, average birth weight and 20 d average weight. Teat number (TN) was also analyzed to determine effect of FSHβ. Total number born (TNB) or number born alive (NBA) showed significant difference among sows with different genotypes. TNB and NBA of the nn genotypes are 1. 70 and 1. 44 more than those of NN genotype in first parities and 1. 20 and 1. 22 more in latter parities. There was significant difference in average birth weight and 20 d average weight. Nn genotype sows piglet weighted more than other genotype. There was also significant difference in TN with different genotypes. So it is possible that FSHβ gene becomes a selective sign in litter-size trait, which has hope to attain better compositive effects.
出处
《扬州大学学报（农业与生命科学版）》
CAS
CSCD
2003年第3期29-31,共3页
Journal of Yangzhou University：Agricultural and Life Science Edition
基金
江苏省自然科学基金(BK2002047)
