According to the allele frequencies of 31 microsatellite sites,mean heterozygosity(H),polymorphism information content(PIC) and genetic distances(DA) were calculated for each breed.

• 利用等位基因频率计算各群体的平均遗传杂合度(H)、多态信息含量(PIC)和群体间的遗传距离(DA),分析其遗传多样性。