There is no need to be in a rush when doing this, and just make sure that you are only tearing at the cord and not jiggling the pup’s belly around.
This simulates what the mother does and therefore you do not need to worry about puppies bleeding out or trying to tie a piece of dental floss, or string on the cord.
The umbilical cord is attached from the puppy to the placenta, which is commonly called the afterbirth.
Now that the pup is born, the placenta is no longer needed. It looks like a very dark greenish-black mass.
Sometimes, when whelping puppies, the mother will push the placenta out almost as soon as she pushes out her puppy.
However, there are times that the momma will push the puppy out far enough to break the membrane sac, clean the pup, and chew through the umbilical cord while the actual afterbirth is still inside of her.
Doing this is healthy for her and helps to keep her strength up, and the mother is going to have temporary diarrhea whether she eats them or not.
After whelping puppies, she is switched over to a different type of food, thereby causing her an upset stomach anyway.
When it comes to your dog whelping her litter, sometimes you will need to move puppies out of the way while your Golden Retriever is whelping another pup, as they can easily get in the way, or get stepped on.
I do not place the puppies in a separate box as some people advise.
All this does is upset the mother.
Instead, I move the puppies either to the other side of the whelping box where she can see them, or lay them by her head while she is whelping.
When your Golden Retriever is whelping her puppies, the box will become quite wet from the water sacs breaking, and from the placentas.