提高牦母牛繁殖性能的研究

Study of Improving Reproduction Performance of Female Yak

采用不同剂量生殖激素处理3.5岁的青年牦母牛,结果发情率提高5.84和23.26个百分点,繁殖率分别提高34.69和41.21个百分点。采用不同剂量生殖激素处理和怀孕牦母牛围产期补饲的措施,促进产后成年牦母牛发情配种,结果发情率分别提高42.42,54.67和37.51个百分点,繁殖率提高43.93,48.48和20.10个百分点。生殖激素处理和围产期补饲对提高牦牛繁殖性能有较大的促进作用,高剂量生殖激素的促进效果较明显。

3.5 years heiferyak were treated with reproduction hormone in different dose. The results showed that estrus rates of them were higher 5.84 and 23.26 percent point than that of control group, and that reproduction rate were higher 34.69 and 41.21 percent point than that of control group, respectively. The adult female yak were treated with reproduction hormone in different dose and supplementary feeding in peripartum. The estrus rate of them were higher 42.42,54.67 and 37.51 percent point than that of control group,and the reproduction rate were higher 43.93,48.48and 20.10 percent point , than that control hroup, respectively. Using reproduction hormone treatment and supplementary feeding in peripartmn had obviously improving the effect of reproduction performance of heifer yak and adult female yak, reproduction hormone in high dose had better improving the effect of reproduction performance.