Thank you! That I did not know. I learn something new every day I am on this site!Just a word of caution: normally there are only one or two potential puppies in a litter. If your breeder offers several, then you might want to reconsider. Also, don't shop for a dog, shop for a very, very good ***** from a very, very strong producing line and get a puppy out of that *****. ***** line is everything in breeding, don't get hung up on the stud dog, even if he is a big winning dog. He can only carry the ***** so far.