They are actually all from different breeding stock. When I got some of them they were very bony and under fed and I switched them to 18% feed and they started looking better and doing better. However they also started carrying more kits since they were healthier. I was giving them calf manna and oats as a treat right up until delivery thinking it would get them healthy for nursing. Unfortunately I think it made the kits to big and healthy. So now if they are bony from nursing previous litters I give them calf manna for the first 2 weeks max and then only their pellets and hay for the last 2 weeks. I have New Zealand’s, lops, Flemish, continental, Rex, and Flemish/ giant chinchilla mixes that I’ve bred. the one I had a big issue with had 15 kits and had went off food for several days except for her salad and hay. I think she was just to full of babies. I’ve read that they drop their calcium (if they go off food) and it makes their uterus weak. My second doe that died was a mystery. She’s never had an issue ever with delivery. She was bred to a buck that she’s had no previous problems with before. my third girl. Was a first time mom and never nested but had blood on her bottom like she was laboring. She seemed calm though so I let her be. She was dead in the morning. Then my other girl that went a week and a half over was a young girl that was a first time mom. She’s nested and then never delivered. However she never went off food, she kept eating and drinking. About a week and a half later she delivered 1 and ate it, and 12 hours later she delivered 1 more, then the 3rd 12 hrs after. We decided to help her because I figured she was only going to deliver as long as she could take care of it herself.