I feed a mix of lab block and dog food to my rats, and I tried it with my mice. I actually had MORE cannibalism when I did this, so I stopped giving dog food to the mice altogether. Maybe I was giving too much? I don't know, but I thought I'd share my experience.

I may try it again, but with less dog food in the mix. I'm currently giving a mix of lab block and parrot food to my mice, and they're doing better for me than they ever have before.

Steve