1. Department of Veterinary Medicine, School of Animal Sciences and Food Engineering, University of Sao Paulo, Pirassununga 13635-900, SP, Brazil
2. Department of Surgery, Faculty of Veterinary Medicine and Animal Sciences, University of Sao Paulo, São Paulo 01001-010, SP, Brazil
3. Department Biomedical Science, Ontario Veterinary College (OVC), University of Guelph, Guelph, ON N1G 2W1, Canada
4. Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Sciences, University of Sao Paulo, Pirassununga 13635-900, SP, Brazil
5. Department of Animal Production, Faculty of Veterinary Medicine and Animal Sciences, University of São Paulo, Pirassununga 13635-900, SP, Brazil