1. Biotechnology (BIONORTE) São Luís Maranhão Brazil
2. Program in Animal Science State University of MaranhãoUniversity City Paulo VI São Luís Maranhão Brazil
3. Biotechnology State University of Maranhão (UEMA) São Luís Maranhão Brazil
4. Department of Surgery, Anatomy of Domestic and Wild Animals Faculty of Veterinary Medicine and Animal Science, University of São Paulo São Paolo Brazil