Hi my dogue de bordeaux had 17 puppies 12 days ago, she had to have a section as the first two puppies were stillborn and she had been in labour for a long time.The other fifteen puppies were doing great up until 3 days ago when they rapidly went down hill we had been feeding them every 2 hours as the vet had advised and they were also kept clean and warm the puppies just stopped feeding and deteriated within 2 hours it was heartbreaking as we thought they were doing well ,we are now done to seven puppies ,although they are looking fine at the moment Im dreading we will lose them too.

I would contact your vet again a.s.a.p and i wish you well we managed to hand rear 5 out of eight puppy`s succesfully but it wasnt a easy job. It sounds like you are doing most things right though make sure the little darlings are nice and warm but dont over heat them!
Good luck