The project aim was to identify proteins that are involved in the control and heritability of osteochondrosis. Four proteins that could potentially be involved had been identified in previous own studies, and during the course of the project, a major genetic study in pigs was completed which generated a further 8 candidate proteins. Tests were run for so-called immunohistochemical staining, and have so far been successful for 6 of the 12 candidate proteins. The project represents the first time one has been successful in taking proteins from a location on the genome of pigs that is demonstrably associated with the heritable predisposition in this species and stain for them in growth cartilage with osteochondrosis lesions in horses. The project has given rise to entirely novel candidates for proteins that control osteochondrosis and, as such, represents a major step forwards in the process of developing a genetic test for this disease in blood samples.