
first let me welcome you to welcome to YTalk and the answer to that question is a big NO!!! the way I see it (just me) and I might get heck for this comment but it is only My opinion, the question would be directed back at you "would you" only think of this question on the human side breeding the father and daughter ok? Or the mother with a son?
Im not a breeder but I have heard this can cause major problems with health risks down the road disfigurement ( no foot, one leg etc..) among a whole list of other complications! you should not breed these parents to their children for what reason to sell the pups? Im sorry but but you did ask

and again welcome