Change in Hip and Elbow Quality Using the OFA System
Jane Russenberger, Jody Sandler, DVM, Gregg Keller, DVM, Victor Rendano, VMD, and Barbara Havlena
Conference Proceedings, 4th International Working Dog Breeding Association, Melbourne, Australia, Vol. 4, pp. 146-148, 2005
Abstract
Analyzed 12 years of OFA hip and elbow radiographs on over 5,000 guide dog Labrador Retrievers. Found hip dysplasia incidence fell from 9.8% to 1.8% and elbow dysplasia from 13.8% to 3.5% under a sibling-based selection program.