1. VTH Rof Codina, Santiago de Compostela University, 27002 Lugo, Spain
2. Lar do Belelle, Canine Center, 15509 Fene, Spain
3. Etoloxía, Behavior Medicine Service, 36312 Pontevedra, Spain
4. Anatomy, Animal Production and Clinical Veterinary Sciences Department, Santiago de Compostela University, 27002 Lugo, Spain