I still can't resist this picture because it was so cute at the time. Chance was 3 weeks old, doing his duty and actually fell asleep while trying. He was having a hard time as the puppies had round worms and we were just getting ready to treat the puppies for them.
We treated them at 3, 5 and 7 weeks old. Puppies are born with round worms and the get them through their mother's milk. Silver wouldn't stop nursing at 8 weeks, so we were back to the vet for more treatment. I'd always wondered how the mother got them, because we had Silver checked before she got pregnant. The vet told me that round worms lay dormant in the muscles until the mother gets pregnant and then they become active and migrate to the mammary glands and the placenta where it carries through the blood supply to the fetus, liver and lungs.
Little facts you may not have known.
We ending up having to separate Silver from her puppies to stop the round worm cycle.