My name is Cathie. I live in North Georgia and my family and I live on 5.5 acres where we have a small farm with ducks, chickens, pheasant, quail and two types of rabbits. I have German Angora and american chinchilla. One of my American chinchillas gave birth to seven kits. she was very protective and is a known good mother. Unfortunately, all but two kits died. I got a look at the two remaining kits and noted that they haven't gotten as big as the other kits from her other litters and that their scrotum (I'm guessing that is what it is) is swollen. Any ideas on what could be the problem? they are only 4 weeks old.