highly significantp < 0.0001
Highly significant differences were observed in pairwise comparisons of Polled compared with Tianzhu, Gannan, Datong and Plateau yak ( p < 0.0001) and with non-significant differences were found between the Datong and Gannan yak breeds ( p < 0.05); however, no significant differences were observed in the comparisons of Datong versus Plateau, Datong versus Tianzhu, Tianzhu versus Gannan, Tianzhu versus Plateau, or Gannan versus Plateau yak breeds ( Supplementary Table S2 ). 3.3.