Leonberger - Health

Health

Leonbergers are strong, generally healthy dogs. Hip dysplasia, which devastates many large breeds, is largely controlled because of the effort of many breeders who actively screen their Leonbergers using x-rays evaluated by the Orthopedic Foundation for Animals and leave dysplastic specimens out of the gene pool, thereby reducing the risk of bone/joint problems. For over twenty years, breeders belonging to the Leonberger Club of America, which issued pedigrees for the Leonberger breed in America, adhered to many aspects of the German breeding program whereby member kennels may only choose to breed dogs that were certified as three generation free of hip dysplasia. As a likely result, the incidence of Hip Dysplasia in the breed was reduced to almost 10% and the occurrence of OFA rated "Excellent" hips increased by over 60% in just twenty years. Current incidence rates of hip dysplasia in Leonbergers are likely around 13%

Though not common, Leonbergers do inherit and/or develop a number of diseases that range in their impact from mild to devastating. In addition to hip dysplasia, Leonbergers can inherit and/or develop heart problems, Inherited Leonberger Paralysis/Polyneuropathy (ILPN), osteosarcoma, hemangiosarcoma, Osteochondrosis Dissecans, allergies, digestive disorders, cataracts, entropian/ectropian eyelids, progressive retinal atrophy (PRA), perianal fistulas, and thyroid disorders. Though rumors persist of Leonbergers being more sensitive to anesthesia than other breeds of dog, they are largely untrue. Leonbergers, like other large breed dogs, require less dosage per pound of sedative than smaller breeds to yield the same effect. The Leonberger Health Foundation, a private nonprofit foundation whose sole mission is to support major researchers who are seeking to identify genetic markers for serious diseases which affect the breed, is currently focusing on osteosarcoma, hemangiosarcoma, and Leonberger Polyneuropathy.