That site is a good site to get info from.....that is one that I got some initial information when I started breeding mice.

Concerning the male mice left in with babies.....I have done both....no problems either way...just be careful of what I mentioned earlier. The only thing that I have noticed is that having a male in stresses the mother more (cause once she has the babies he is constantly trying to breed again). I generally take the males out because with my female breeders I like to give them a few weeks to regain their strength after having the babies. This will allow your mice to be healthier and have consistantly larger litters.

With moving baby mice...IMO....it seems to be dependant on two things: how comfortable the females are with you and what your hands smell like. If you were always handling your mice before they had babies, they don't really seem to worry about you hurting them as much. If you just keep them and only handle on cleaning days, then I would be a bit more worried about moving. But once the babies have hair.....I always move them around with no problems.

Mice are like any other animal....each one is different....I am always learning from my mice.