Osteochondrosis (OC) is an important developmental orthopaedic disease that affects Thoroughbred horses around the world. It is widely accepted that both genetic and non-genetic factors contribute to the occurrence of OC in horses. This report quantifies the effect of genetic and non-genetic factors contributing to OC in Australian and New Zealand Thoroughbreds, and develops a tool (Estimated Breeding Values; EBVs) to predict the occurrence of OC in individual horses and in their progeny.
This RIRDC report is targeted at equine veterinarians, stud managers, horse owners, sales companies and researchers who are involved in the Thoroughbred breeding industry in Australia. Although the research has been conducted in Thoroughbreds, it has broad applications for improving our understanding and management of this disease in the horse population at large.