1. Program of Graduate in Science and Animal Health Center for Health and Rural Technology University Federal of Campina Grande Paraíba Brazil
2. Post‐Graduate in Veterinary Anesthesiology Instituto Qualittas Ceará Brazil
3. Departament of Veterinary Medicine University of Sao Paulo São Paulo Brazil
4. Program of Post‐Graduation in Structural and Functional Biology University Federal of Rio Grande do Norte Natal, Rio Grande do Norte Brazil
5. Department of Morphology University Federal of Rio Grande do Norte Natal, Rio Grande do Norte Brazil