1. Animal Biology Department, Federal University of Viçosa, Viçosa, 36570-000 Minas Gerais, Brazil
2. Animal Biology and Cellular and Structural Biology Graduate Program, Federal University of Viçosa, Viçosa, 36570-000 Minas Gerais, Brazil
3. Morphological Science Graduate Program, State University of Rio de Janeiro, Rio de Janeiro 20950-003, Brazil
4. Institute of Animal Nutrition, Freie Universitat Berlin, Berlin 14195, Germany