No offense, carebears1, but didn't you read what happened? The mama's cage mates attacked the babies, not the mom. And I can't personally justify your plan on feeding your mama who ate 3 of her babies to something, if she eats any more? I can understand your logic, but I think it's definitely flawed. For one thing, mamas have a good reason to eat their babies - as long as they're not stressed out, they eat the babies typically because they sense something is wrong with their offspring; and it's more humane to eat the ill babies and derive the nutrition out of them to feed the healthy, thriving babies to grow up big and strong, than it is to give ill babies their precious, sometimes limited milk, who may not survive anyway. It's survival of the fittest, even in the domesticated world, and the ill just don't go very far. So your mama is being a good mom.
Better to be killed and eaten, then starved and wasted.