产后奶牛子宫机能复旧治疗方案的研究

The Study on the Remedy for Uterine Involution of Postpartum Cows

为了探讨产后奶牛子宫机能恢复的有效治疗方案,本试验随机选择生殖正常的荷斯坦奶牛,在产后特定时间内注射缩宫素、氯前列烯醇、苯甲酸雌二醇、促黄体释放激素A3,并结合中药制剂和土霉素,直肠检查产后子宫形态,观察产后子宫恶露排放情况以及发情时间,统计受胎率,分析产后奶牛子宫机能的恢复状况。结果显示:试验组(A组)产后奶牛在30和45 d内发情率分别为75%、85%,60 d内的受胎率为55%,极显著高于对照组(B组)。A组中恶露排尽的时间,子宫孕角以及子宫颈恢复的时间要比B组提前,差异极显著(P<0.01);由此得出:以缩宫素、氯前列腺素、苯甲酸雌二醇、促黄体释放激素A3结合中药制剂和土霉素的治疗方案,可有效的加快奶牛产后恶露的排放和子宫机能的恢复,而且可以有效的预防和治疗子宫内膜炎、卵巢囊肿等产后疾病,起到了提高受胎率,缩短产犊间隔的作用。

To explore the effective remedy to cure uterus of the postpartum cows,certain Holstein cows were first randomly selected from cows with normal reproductive capability and were injected with Oxytocin,Cloprostenol,Estradiol Benzoate,and Luteinizing Hormone Ereleasing A3 as well as herbs and oxytetracycline after postpartum.Then we examined the uterus shape through rectal,observed lochia emissions and estrous interval,and accounted their conception rate to analyze these cows′ uterine recovery.The result showed that in the experimental group（group A）,the estrus rate within 30 d and 45 d were 75% and85%,respectively.Meanwhile,the conception rate was 55% within postpartum 60 d,which was significantly higher than the control group（group B）.Besides,lochia emissions as well as the recovery of uterine horn and cervix uterus in group A were earlier than group B,and the difference was extremely significant（P〈0.01）.Thus,the remedy of combining Oxytocin,Cloprostenol,Estradiol Benzoate, Luteinizing Hormone Ereleasing A3 with herbs and oxytetracycline can accelerate lochia emissions and the recovery of uterine function of postpartum cows,while it was also effective in preventing and treating postpartum diseases such as endometritis and ovariant.At the same time,it also played an important role in improving the conception rate and shortening the calving interval.