1. Reproductive Health and Biotechnology Lab, Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
2. Department of Medicine and Animal Surgery, Autonomous University of Barcelona, Cerdanyola del Vallés, 08193 Barcelona, Spain
3. Karyotekk Inc., Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada