Envigo uses well-established techniques to successfully produce time mated rats, mice, hamsters, and rabbits. We use an Impedence Meter for determining the stage of estrus in rats prior to breeding. Time mated rats and mice are determined by observation of a vaginal plug. Plug date is considered to be day zero (0) of gestation.

Due to the natural variation in the length of gestation, the exact day of parturition cannot be guaranteed. In addition, Envigo cannot guarantee the minimum number of offspring per litter.

Please be aware that late-term pregnant animals may deliver their litter prematurely while in transit, and depending on the circumstances involved, requests for credit or replacement of these animals may be declined at our sole discretion.

如果问题关于孕龄或怀孕are encountered, customers should immediately contact Envigo’s Customer Service Department and provide detailed information regarding the animals involved.

*仅限插头保证;没有保证怀孕。插头日期=第0天。

**基于触诊或视觉确认的基于我们的繁殖殖民地选择未定量的孕啮齿动物。可以预期妊娠三到四天的变化。因此，Envigo不B0B体育平台下载能对实际妊娠和/或确切的乱扔垃圾的责任。

为避免收费，必须收到对定时配合动物的取消one week prior to mating date.

U.S.