徽成盆地黄牛血液蛋白多态性研究

Germplasm Characters of Huicheng Yellow Cattle Population inGansu Province ofP. R. China

采用亚群区定点随机抽样法，调查了甘肃省徽成盆地黄牛（徽成牛）２个亚群（共１１３头）６个毛色位，久和６项外形特征的表型频率；利用聚丙烯酰胺垂直平板电泳法检测了上述个体Ｈｂ、Ａｌｂ、Ｐａ、Ｐｔｆ─Ⅱ和Ｔｆ血液蛋白质位点的基因频率；随机抽测了１２３头成年母牛的体高、体斜长、胸围和管围。比较了徽成牛与中国其它牛品种或类群之间在毛色、体态、体尺和血液蛋白质多态性特征方面的差异；分别利用杂合度和Ｈａｒｄｙ－Ｗｅｉｎｂｅｒｇ定律分析了其遗传变异性和稳定性。研究结果表明，徽成牛不属于蒙古牛品种，是一个相对独立的地方黄牛品种。

Thephenotype frequencies of 6 coat color loci and 6 body statures of 113 heads of2subgroups within Huicheng yellow cattlepopulation 、bred in the Huicheng basin of Gansuprovince were studiedbymeans of statistical analysiS forthegenefrequencies in5polymorphicblood protein loci(Hb.,Alb,Pa,Ptf─Ⅱand Tf)with polyacrylamidegelelectrophoresis. The differences of the characters studied for the Huicheng cattle were significant from that oftheotherChinese yellow cattle breeds.As a result,Huicheng cattle population is not tobelong totheMongolian cattlebreed,buttobea relative independentindigenouscattlebreed。