So I have a really neat looking rat, has one black eye and one red eye, so I held it back as a breeder. She has had, I think this is her 3rd litter, and she never once tries to take care of the babies. I don't understand why. She has food and water at all times, the room temp is kept comfortable. I have been running into this problem quite a bit lately. Any suggestions? I would really like to keep her as a breeder and try for more of the odd eye colors, but if this is hopeless I will just feed her off on the next feeding day. Thanks.