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					Originally Posted by jencar98  I was wondering about this very thing, the possiblity of parents testing okay and still producing an LS puppy.  I did wonder if the disease could skip a generation.  Now that I know, I wouldn't accept a puppy just because the parents were cleared, I would insist the puppy be tested too. | 
 
  That's why it's important for your breeder to know their lines & be positive that there are no known dogs in their pedigrees that have had LS. If adults are tested & there is no known history of a shunt in the pedigree, there is a lot less chance of getting a puppy with a shunt than if you bought from a byb that doesn't know their dogs' histories or do any health testing.  Even with screening, there is still a possibility of getting a puppy with LS, but you can lower your chances if you go with a good breeder over a bad one. 
    
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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.