1 Federal University of Mato Grosso, Department of Veterinary Science, Postgraduate Course in Veterinary Science, Cuiabá, Mato Grosso, Brazil. Electronic address: leticia_lecamara@hotmail.com.
2 Federal University of Mato Grosso, Department of Veterinary Science, Postgraduate Course in Veterinary Science, Cuiabá, Mato Grosso, Brazil.