1. Graduate Program in Environmental Biotechnology State University of Maringá, Jardim Universitário Maringá Paraná Brazil
2. Department of Animal Science State University of Maringá, Jardim Universitário Maringá Paraná Brazil
3. Department of Animal Science Federal University of Sergipe, Avenida Marechal Rondon, s/n, Jardim Rosa Elze São Cristóvão Sergipe Brazil
4. Department of Genetics Federal Rural University of Rio de Janeiro Seropédica Rio de Janeiro Brazil