Breeding decisions...good and bad

I am no breeding expert, I ain't that smart. But I have heard people I respect take a different angle. They will breed young dogs and then look at the puppies that come out. If they produce a high number of good dogs they breed again. If not they cull the pups and breed different dogs. They like to protect their breeding dogs so they can keep getting good puppies. So if you asked them to hunt their breeding female or male they would not do it. They can produce good dogs and want to produce better dogs. But if the breeding dogs gets killed they have lost what they have. I hope some of those people will chime in and explain it better.

I think more like you but I understand the other thinking. Of course they could just have culls they want to breed so they can say the pups came from your line too.