复方避孕药物(EP-1) 对雄性大仓鼠繁殖器官的影响

鉴于传统化学灭杀方法存在的不足和缺陷，各国都在致力于研究无公害、可持续的鼠害防治技术与策略，其中不育控制是当前研究的一个热点：近年来我国在鼠类不育控制方面也开展了一些研究（张知彬等，1997a，1997b，2001；Shi et a1．．2002；Li et a1．，2006）。

Effects of a contraceptive compound (EP-1) on reproductive organs of male Greater long-tailed hamsters (Tscherskia triton)

We first report the effect of a compound EP-1 (mixture of levonorgestrel and quinestrol) on male greater long-tailed hamsters (Tscherskia triton). Hamsters in the treatment group were provided with wheat baits with 0.001% EP-1 for six consecutive days, while hamsters in the control group were provided with plain wheat. One week and three weeks later, reproductive organs of hamsters of both groups were measured, respectively. We found the size or weight of testis, spermatophore and epididymis of the treatment group were significantly reduced compared to those of the control group, and this reduction was greater in the third week compared to that of the first week. The results indicate that EP-1 is able to reduce the fertility of both male and female hamsters.