> They were born at 51 days via Emergancy Csection, mum had no milk to start and unfortunately hasn’t still today.
I'm assuming there was good reason to deliver these puppies by C.Section that early ...... anyhow, we've had a number of C.Sections (mine would go into secondary inertia meaning the puppies had to come out other than naturally) and in every case, putting the puppies onto mum which was comparatively easy with mum very often still zonked out, giving me a chance to latch the puppies on and that encouraged lactation. In fact with one litter which was a disaster (long story but the vet on duty messed up), the locum vet who was on duty when the vet we normally saw in that practice was on vacation, visited that evening and was gobsmacked to see mum happily nursing the surviving 4 (or 9) puppies.
Still if you've gone down the hand-rearing road it's enough for mum to be attending to helping the puppies empty!
I've never, again, wormed at under 2 weeks, and with a premature litter, wouldn't have risked doing that. Yes, if they've not had mum's colostrum, you should be looking at interim vaccination against Parvo and Lepto at around 6 weeks.
Hope they survive.