I have a Question. I'm New to Breeding Mice.

[Bullsnake001]

So I have three female mice that i got from the pet store and they were in a cage with male mice already. do i need to put another male mice with them or should they already be pregnant? would it hurt if i put a male mice in and they are already pregnant?

[maximus30576]

I would put one in to make sure .. If you have one available ..

[exwizard]

I'm thinking the second male isn't necessary. Our breeding groups consisted of 1.3, 1.4, 1.5 and 1.6. If you're going to run a second male give him a separate set of girls.

[Bullsnake001]

thanks for the input. I was also wondering how do i know if my females are old enough and ready to breed?

[exwizard]

A safe bet is at least 2 months old although it could happen earlier than that.

[jarich]

Id say trade them all in and get rats. Just teasing, but they are so much nicer and easier to keep, plus they smell much better too.