
Also bitches will have bloody discharge sometimes for weeks after whelping. Unless there is an unpleasant odour (other than what you would expect from blood) then there is no infection.
Also it takes several days for there to be much milk which is why for the first 3 or four days pups suck almost continuously to stimulate milk, and as long as pups are strong then enough should e made. If for some reason pups are weak or it takes unusually long to get milk started then you may need to help out, weighing pups should tell you if this is needed if they loose more than an ounce or so.
A friend recently had to deal with litter where the bitch was thought to have a phantom and given Galastop to dry up milk. She had none at all for a week, but because pups were allowed to suckle by a week the bitch was feeding the pups unaided.
A poster some time back had a bitch who reacted badly post whelping wanting to kill the pups, she too eventually accepted them and her milk came in nd they were able to be on Mum only after a few days.
Milk production is on a supply and demand basis. Even a litter of 10 shouldn't be a big problem for a medium to large breed bitch as that is how many teats most have.
Some very Maternal bitches can come into milk when a litter is born to another bitch and they will feed them.
A lot of Vets know very Little about breeding beyond C sections.
Also just wanted to add I believe the idea of Toxic Milk is an old wives tale. My Jozi had infected Mastitis last year at Christmas with congested milk blood and puss in the gland. The puppies had the sense to avoid that gland and continued to suckle as normal from the others. A good course of strong antibiotics safe for lactation was given to her and I had to express the gland (put me of tomato and then mushroom soup for months). Once th gland was clear milk flowed as normal and pups barely had a hiccough in weight gain. they were about 10 days at the time.