The result of x ~2 fitness test of primer 2 indicated that Jining grey goat, Wendeng dairy goat, Liaoning cashmere goat, Beijing native goat and Boer goat all kept in Hardy-Weinberg equilibrium (P>0.05).

• 对济宁青山羊、文登奶山羊、辽宁绒山羊、北京本地羊、波尔山羊5个山羊品种具有多态性的引物的扩增片段进行x~2适合性检验:引物2扩增片段在这5个山羊品种群体中都保持了Hardy-Weinberg平衡(P>0.；05);