Abstract: Objective To observe the effect of chinese medicine preparation for improving the reproductive rate of laboratory Beagle dogs．Methods 24 female Beagle dog about l～2 years old were divided into a lab group and a control group randomly．They were fed different diets respectively：control group for foundation date grain，lab group for the foundation date grain and chinese medicine preparation．The experiment had mated repeatedly and recorded the estrus rate、the conception rate、the farrowing rate and the litter size of female Beagle dog．Results Compared with two groups，the estrus rate had risen from 66．67％to 100％；the conception rate had risen from 71．43％to 91．67％；the farrowing rate had risen from 80．00％to 90．91％；the litter size of female Beagle dog had risen from 6．80 to 10．18．Conclusion Chinese medicine preparation could improve the reproductive rate of laboratory Beagle dogs significantly．

Key words: laboratory animal, Beagle dog, chinese medicine preparation, reproductive rate, synchronization of estrus

摘要： 目的观察复合中草药制剂对雌性比格犬繁殖率的影响。方法选用l一2岁雌性比格犬24只，随机分为雌性实 验组和雌性空白对照组。雌性实验组比格犬饲喂基础日粮和复合中草药制剂，雌性空白对照组饲喂基础日粮。两组均采 用重复配种方式进行配种，统计各组雌性比格犬的发情率、受孕率、产仔率以及平均每窝产仔数。结果雌性实验组与空 白对照组相比较，雌性比格犬的发情率由66．67％提高到100％；受孕率由71．43％提高到91．67％；产仔率由80．00％提高 到90．91％；平均产仔数由6．80只提高到lo．18只。结论复合中草药制剂能显著地提高雌性比格犬的繁殖率。

关键词: 实验动物, 比格犬, 中草药制剂, 繁殖率, 同期发情