1. Department of Surgery Veterinary, College of Agricultural and Veterinary Sciences; Sao Paulo State University (UNESP); Jaboticabal, Sao Paulo Brazil
2. Department of Animal Reproduction, College of Agricultural and Veterinary Sciences; Sao Paulo State University (UNESP); Jaboticabal, Sao Paulo Brazil
3. Department of Biomedical Sciences, Ontario Veterinary College; University of Guelph; Guelph ON Canada