1. Department of Reproduction and Clinic of Farm Animals, Wrocław University of Environmental and Life Sciences, 50-366 Wrocław, Poland
2. Physiology of Reproduction and Behaviors (PRC), UMR085, INRAE, CNRS, University of Tours, 37380 Nouzilly, France
3. Museum National d’Histoire Naturelle, Réserve Zoologique de la Haute Touche, 36290 Obterre, France