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.

由于怀孕时间的自然变化，不能保证确切的分娩日期。此外，Envigo不能保证每窝产仔的最小数量。B0B体育平台下载

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.

*仅插头保证；不能保证怀孕。插入日期=第0天。

**未怀孕的啮齿动物将在触诊或视觉确认的基础上从我们的繁殖群体中挑选。妊娠期可能有三到四天的变化。因此，Envigo不能对实际怀孕和/或确切的扔垃圾日期负责。B0B体育平台下载

为避免收费，必须收到定时交配动物的取消通知one week prior to mating date.