1. Department of Animal Reproduction and Veterinary Radiology São Paulo State University (UNESP) Botucatu Brazil
2. Department of Veterinary Surgery and Anesthesiology São Paulo State University (UNESP) Botucatu Brazil
3. Department of Veterinary Clinic São Paulo State University (UNESP) Botucatu Brazil
4. Department of Animal Production São Paulo State University (UNESP) Botucatu Brazil