I am looking for advice about one of my breeding females. She has had two litters. Her first litter was 8 pups. Only 5 survived the first week. She recently just had her second litter of 8 and only 3 have survived so far. She had both litters during the night so we haven’t been able to tell if she’s having complications during delivery. What would be the issue causing the pups to die? The puppies in her first litter grew to be very large, healthy pups. I just can’t figure out why they’re not surviving. Thanks for any advice!