
I agree with westcoast. I have worked for well over an hour on a seemingly dead pup. I wonder if perhaps they don't go on so long as the breeder actually would.
I have a breed that is not easy to whelp, and over the years, have purposely worked on my own self whelping line. However, during the process, I've obviously had bitches needing sections ( I have them spayed if they don't whelp naturally.)
In two instances I've had bitches with 5 pups (too many for the breed) and I honestly feel that there reaches a stage when contractions are nigh on impossible. My line that regularly produces 2 pups, seems to be the way to go, as they seem to whelp easily. (Could be worng, just my take on things.)
But I've never lost all but one pup! I feel that I would want an explanation. One of my girls went in (always at night isn't it) and the vet called the night duty nurse. I asked her to make sure my girl was ok, I wasn't worried about the pups. She told me that it was her responsibility to make sure they all survived.
I was called in to the operating theatre after my girl had been stitched up, and the nurse was shaking from working so fast! It isn't like us delivering pups one at a time. Bless the girl, she had these 5 titchy pups all in the same oxygen mask, but she got them all going. I have only ever had one dead pup during a section, and that one had it's neck caught in one of the ribs. I was asked if I wanted to see the pup which I did. I guess I wanted to know for sure that there was no deformity. It was a perfect little pup, normal size, just bad luck to have a malpresentation.
I ask questions, and want explanations - you deserve the same. While I understand that you won't want to put your girl through this again, I do think you need to speak to the vet who operated. You need that satisfaction.