I did some research on this awhile back, and learned that 7 weeks is the ideal time to separate the puppy, because that is when it starts to form attachments/start bonding.

I have sold quite a few large breed puppies at 6 weeks though, and...

I was really glad to read this. Our family has raised Labradors since 1998, and we rarely skipped heats ... we just let them get bred whenever they came into heat. Our opinion is, that is what they were created to do. And we have had dogs skip their ...