I cull any females that seem to be trying to take the "Alpha" position (yeah, I know they are supposed to be there, but they usually disrupt the colony if they aren't good Alphas).
Then I add fat to the diet of all the breeding females. *I am a meat eater, so I just give them the scraps and the fat on top of their regular Mazuri..etc.
I haven't had any "eating" in my established colony...but I had to feed them off when it appeared that they were coming down with something (flu)...I am starting a new colony now and going through the same process.
In fact, I caught one female eating a kit directly from her womb..no it was not afterbirth, and promptly fed her off, did not even wait for the rest of the kits to be born lest she do it again. Following my process, I now have a nice colony and some fresh kits that are thriving and I keep all the breeders supplied with fat (fresh fat..real fat).