1. Department of Veterinary Clinics, School of Veterinary Medicine and Animal Science, São Paulo State University (Unesp), Botucatu, São Paulo 18616-681, Brazil
2. Department of Animal Breeding and Nutrition, School of Veterinary Medicine and Animal Science, São Paulo State University (Unesp), Botucatu, São Paulo 18616-681, Brazil
3. Department of Veterinary Anesthesiology and Surgery, School of Veterinary Medicine and Animal Science, São Paulo State University (Unesp), Botucatu, São Paulo 18616-681, Brazil
4. Department of Animal Reproduction and Veterinary Radiology, School of Veterinary Medicine and Animal Science, São Paulo State University (Unesp), Botucatu, São Paulo 18616-681, Brazil
5. School of Veterinary Medicine, Cesmac University Center (Cesmac), Marechal Deodoro 57160-000, Brazil