1. Institute of Animal Breeding and Genetics, University of Veterinary Sciences Vienna, Vienna, Austria
2. Agroscope, Swiss National Stud Farm, Avenches, Switzerland
3. Pöckau, Arnoldstein, Austria
4. Department of Animal Husbandry, Slovak University of Agriculture in Nitra, Nitra-Chrenová, Slovak Republic
5. Institut National de la Recherche Agronomique, UMR 1313 Génétique Animale et Biologie Intégrative, Jouy-en-Josas, France
6. Institut Français du Cheval et de l’Equitation, Recherche et Innovation, Exmes, France
7. Clinic for Reproduction and Large Animals, Veterinary Faculty, University of Lubljana, Cesta v Mestni log, Ljubljana, Slovenia
8. Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Cesta v Mestni log, Ljubljana, Slovenia
9. Animal Genomics, ETH Zürich, Zürich, Switzerland