1. Department of Animal Reproduction; São Paulo State University; Prof. Doutor Walter Mauricio Correa n/n, CEP: 18618-681 Botucatu, São Paulo Brazil
2. Department of Genetics, Bioscience Institute; São Paulo State University; Prof. Dr. Antônio Celso Wagner Zanin, 250, CEP: 18618-689 Botucatu, São Paulo Brazil