犏牛补饲维生素E的试验

对多元杂交不同组合犏母牛补饲维生素E，结果表明：通过补饲维生素E后，西黄牦犏牛子宫内膜炎的发病率比对照组降低20％，荷黄牦犏牛的比对照组降低30％，西黄牦犏牛和荷黄牦犏牛乳房炎的发病率均比对照组降低30％。给犏母牛补饲维生索E能显著提高犊牛初生重和犊牛产后成活率，对母牛产奶量影响不明显。

Experiment of Supplementary Feeding Vitamin E to Pienniu

An experiment of supplementary feeding Vitamin E was conducted in the female piennin of the different multiple-cross combination. The results showed that the morbidity of endometritis in the Semmental-yeUow-yak pienniu was lower 20% and in the Holstein-yellow-yak pienniu was lower 30% than that in control group, and the morbidity of mastiffs in the Semmental-yellow-yak and the Holstein-yellow -yak piennin was lower 30% than that in control group after supplemental feeding Vitamin E. The supplemental feeding female pienniu with Vitamin E could significantly improve the calf birth weight and the post-natal survival rate of calves, and there was not obvious influence on the milk yeild of cows.