Make sure she has PLENTY of water at all times. If you use a tub to water her in, try to tie it to the side of the cage so that she is less likely to dump it over. Give her food and greens if you can. Supply a decent nest box and let her do the work. I have heard that if a rabbit doesn't have enough water around kindling time, she is more likely to eat her young. Don't know how true that is. Some folks will recommend that you remove the young from her and return them for the morning feeding and at night for the evening feeding otherwise, they are seperate from each other.