#9. Heath tested and cleared dogs still could be carriers for a genetic defect and produce defective puppies, so why bother?
Genetic health test clearances do not guarantee that Giant Schnauzer litters will be disease-free, but the odds in favor of producing genetic disease-free Giant Schnauzer puppies are greatly increased when only tested and cleared Giant Schnauzers are bred. Therefore, it is irresponsible to the puppies and the buyers to not test and clear all Giant Schnauzer breeding stock.