1. Unit of Animal Genetics; GIGA-Research; Faculty of Veterinary Medicine; University of Liège; B-4000 Liège Belgium
2. CIRALE (Center of Imaging and Research on Equine Locomotor Affections); National Veterinary School of Alfort; F-14430 Goustranville France
3. Department for Functional Sciences; Faculty of Veterinary Medicine; University of Liège; B-4000 Liège Belgium