Orthopedic Foundation for Animals

The OFA was founded by John M. Olin in 1966,^[3] after several of his dogs became affected by hip dysplasia. While initially focused on hip dysplasia, today the OFA has health databases on a wide range of diseases including: elbow dysplasia, patellar luxation, Legg–Calvé–Perthes, thyroid, cardiac, congenital deafness, sebaceous adenitis, and shoulder O.C.D. The methodology of the evaluation is considered a subjective method. There are other methodologies in practice that include a Distraction Index for Penn Hip evaluations, an objective scoring method practiced by the British Veterinary Association, and an evaluative grade based on point by point criterion in the Federation Cynologique International system.

The OFA offers DNA certification for canine degenerative myelopathy, neuronal ceroid lipofuscinosis for American Bulldogs, Fanconi syndrome for Basenjis, and neonatal encephalopathy with seizures for Standard Poodles. This is done through an exclusive agreement with the University of Missouri.

Dogs (and cats) that have had an OFA certification issued can be searched by name, part of name, or registration number. Results include all OFA certifications for the animal, and sire, dam, siblings, half-siblings, and offspring.^{[relevant?][4]}

• PennHIP
• American Kennel Club

• Greg Keller, The use of health databases and selective breeding: A guide for dog and cat breeders and owners 5th edition 2006 OFA accessed at [1] July 26, 2006

• Official website