青南地区牦牛生产性能的评估

Evaluations of the Yak Performance in the South Area of Qinghai Provice

通过 1 997～ 1 999年对青海果洛家牦牛产乳性能、带犊、不带犊对母牛生长发育的影响、初生和 1岁牦牛产肉性能及生长发育规律等生产性能综合研究 ,证实了导入野血公牦牛与当地家牦牛交配 ,可充分发挥野血牦牛耐粗饲、耐寒、生长发育快的优势 ,是一条在现行畜牧业体制下复壮家牦牛的简便措施。通过该地区牦牛生产性能现状的评估 ,将为牦牛杂交改良、本品种选育、政府部门的宏观决策提供理论依据。

On the comprehensive evaluation of yak, milk production, growth and development of yak cows with or without a calf, growth and development and beef production at birth and 1 year old in south area of Qinghai, it was proved that introduction of wild blood bull yak to mate with local domestic yak cows was a simple measure to recover local domestic yak under present animal husbandry policy. Our results would supply a theoretic base for crossbreeding and improvement, breeding and selection of yak and government decision.