1. Swiss Institute of Equine Medicine ISME; Vetsuisse Faculty; University of Bern; Länggassstrasse 124 3012 Bern Switzerland
2. Swiss National Stud Farm; Agroscope; Les Longs-Prés 1580 Avenches Switzerland
3. Institute of Genetics; Vetsuisse Faculty; University of Bern; Bremgartenstrasse 109a 3012 Bern Switzerland