在血清后白蛋白□中，Po2~A是佳米驴、泌阳驴、关中驴的优势基因，Po2~B是德州驴、广灵驴、的优势基因，而庆阳驴则表现为杂合子；
The superior gene in Dezhou donkey and Guangling donkey was Po2 ~ B. And the Po2 loci in Qinyang donkey displayed heterozygote .
佳米驴