【摘要】 采用微量淋巴细胞毒试验对９０头经产母猪（二花脸６５头，大约克猪２５头）进行了血清学分型，计算了单倍型在两品种中的分布频率，运用单因子和双因子最小二乘分析法分析了ＳＬＡ单倍型与产活仔数之间的相关性。结果发现：（１）不同单倍型对猪产活仔数影响有明显的差异，Ｈ６、Ｈ１０有明显的正效应，Ｈ２、Ｈ１２、Ｈ３１有负效应。（２）单倍型对产活仔数影响在品种间有差异，在太湖猪中Ｈ６、Ｈ７、Ｈ１０和Ｈ２３几种单倍型频率与大约克猪不同，且二花脸猪的Ｈ６（＋０．７７）、Ｈ７（＋０．３６）单倍型对产活仔数有较大的正效应值。更多还原

【Abstract】 Ninety sows(65 Erhualian and 25 Large White) were serologically typed by micro-lymphocytotoxicity.The frequency of each haplotype in two breeds was calculated.Therelationship between SLA haplotype and born alive litter size were analyzed by singleand two factor least squares analyses with folloking results:(1)Haplotype differencemade significantly different effects on born alive litter size.Haplotype H6 and H7 showpositive value while H2, H12 and H3l show negative value. (2)Haplotype effects onborn alive litter size made a difference between two breeds.The frequency of haplotypeH6,H7,H10 and H23 were differ between Erhualian and Large White,and the formerwith a bigger positive value(H6+0.77;H7,+0.369) on born alive litter size.更多还原