I don't know much about borzois, but I get on another forum at
www.terrificpets.com and there is someone on there that breeds them. You could probably sign up and post about it there and I'm sure she'd reply to you
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~Magnifique Yorkies~
Purchasing from backyard breeders, pet shops, and puppymills perpetuates the suffering of other dogs.
Educate yourself and buy from reputable breeders or rescue.