Yes, it is. I don't do it, but I know many people that do. I would do it if I had the room for another rack. (Even though you don't necissarily need one to breed rodents)...
I breed my own rats. I am not yet producing enough to totally supply my needs, but the financial burden has eased significantly! I have a breeder colony of 1.4, but I'm fixing to off one female, and replace her. She isn't producing.
Randy
"I think it might be helpful for everyone to remember that the purpose of a forum like this is to EXCHANGE IDEAS, not dictate what is right or wrong or good or bad. If you disagree with what someone else is suggesting, you can say so without being argumentative or completely slamming the guy (or girl)." - Smynx