Pure-bred Dogs The price of pedigree Sophie Anderson The evolution of breed Domestication Breeding for function The kennel club Breeding for form 1. Inbreeding Increases both desirable and undesirable traits Decreases genetic diversity Cause of congenital deformity, low fertility and weakened immune system 2. Hereditary disease No mandatory screening Many disorders are recessive Historically dogs culled for non- conformitytg_10_2511_a_diseases_and_descriptions-gribbles1.pdf 3. Physical deformity Influenced by breed standard eg. Bulldog The face, measured from the front of the cheek-bone to the nose, should be as short as possible, and its skin should be deeply and closely wrinkled. Positive Actions Accredited Breeder Scheme (NZKC) Increasing knowledge of genetics and available screening can reduce hereditary disease Modern vets and breeders oppose culling of healthy animals