Both HbA and HbB vari-ants were revealed in all the Tibetan sheep in various region, and a HbC variant was also revealed only in a few sheep, altogether showing four genotypes, HbAA, HbAB, HbBB and HbAC.

• 各地区所有藏羊均检测出HbA和HbB两种变异体,个别藏羊还检测出HbC变异体,共显现出HbAA、HbAB、HbBB和HbAC四种基因型。