Do you separate pregnant mice?

[truthsdeceit]

If you are separating mice, you are limiting your production efficiency.

Sometimes that's a good thing. I don't know what i'd do if my mice all had back to back pregnacies. I only have 3 snakes so rotating my male mouse lets me control how many mice I get vs. how many I need.

But yeah, if you need a 'crapton' of mice then keeping established colonies is probably the way to go.