>>I purchased a 1.3 rat colony on june 5th which turned out to be a 3.1 lol , anyway i returned the males an exchanged them for females. Noticed one of the females appeared to be pretty fat but thought nothing of it since i had never seen a gravid rat. Well i went in to do some cage matenance(sry cant spell) and found that the fat female was indeed pregnant at time of purchase and had delivered sometime between last night and this morning. There are 12 pinks all of which appear to be alive an feeding. All of the other rats were keeping there distance scattered about the cage. Now ive only had this colony about 8 or 9 days so should i separate the female and her litter from the others?
Are they fighting? I mean is she actively attacking the others or are they just keeping their distance. Unless there is a ton of fussing I would leave them alone. Unless your plan is to have moms by themselves all the time. Getting her back into the group later will be more of a hassle. If they were not fighting for the 8 or 9 days they were together and she didn't attack them just previous to giving birth, again, I would leave them alone.
The idea that a male will kill pups that aren't his is, IMHO, a myth. I have never had a male do it. I think it is just something that happens now and then, just as any aggressive male can be overzealous, but not something that is a given. If you are totally worried about the boy then do what you are comfortable with. I have 2 males and 6 groups of girls now and I just rotate them through. Usually I either leave him in through birthing or I move him back in when babies are 2 or 3 weeks old depending on the break I want to give the moms. The males, like many human males, seem only vaguely aware that the pups are there.
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Sonya
Haven't we warned you about tampering with the structure of a chaotic system?
Mrs. Neutron