Sunday, February 7, 2010

How long until the baby mice are born?

how long from the time of sex to the time of birth, how long does it take for mice to give birth?How long until the baby mice are born?
19-25 days


its a very quick process but the babies are born with their eyes closed and no fur.


to me they look like fingers (gross!!!!!)


anyway congrats ;]How long until the baby mice are born?
The gestation period is normally 22 days, but can vary from 21 to 23 (and maybe even to 25). Two weeks into the pregnancy the mother's abdomen will usually start expanding, but not always. As the birth approaches, you may be able to see the pups moving inside her, or feel them if you gently feel her abdomen. The mother's needs are simple: a nutritious diet, exercise, and extra nesting material a few days before the expected event. If you've been letting the male live with the female you should remove him before the birth. The father would never hurt his babies, but all females come back into heat within 24 hours of the birth(called the post partum estrus(so if you leave them together she would immediately become pregnant again.





If the pregnant female has been living with another female, or a neutered male, it's all right to leave them together during the birth and the raising of the babies, as long as the cage is large enough to allow the mother privacy. However, it's not a good idea to leave two pregnant females together because although they won't intentionally hurt each other's babies, they may steal them from each other. If this turns into a tug-of-war, the infant's tender skin can be severely damaged by the females' sharp teeth. Never put a new rat in with a pregnant or nursing female, because she will viciously attack them.





Sometimes a pregnant or nursing rat has a change in personality from the hormone changes. She may become more aggressive, or less interested in playing. In rat society, a mother rat is usually dominant over all otherrats, even if she is usually submissive. However, when her job of child rearing is over, the mother will usually regain her former status and personality. It is also common for a nursing mom to have soft stools.
Not long at all. My son used to raise them for his snake and I would say3-4 weeks. You could google and find out for sure,

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