No.

Can you refuse to take the puppies? Or... work with an adoption agency to get them adopted out to loving, APPROVED homes? Then end the sale of "livestock", as you put it. You could even use the cages and space to have adoption days for local rescues.

There is NO reputable way to sell puppies in a store. None. NO reputable breeder sells their puppies to a pet store. By continuing that vicious cycle, you will then become an aid to puppy mills/BYBs, and we all know you're a better person than that!