1. Department of Chemistry, Institute of Exact Sciences, Federal University of Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, Minas Gerais 31270-901, Brazil
2. Federal Laboratory of Animal and Plant Health and Inspection, Ministry of Agriculture, Livestock and Food Supply, Avenida Rômulo Joviano, Pedro Leopoldo, Minas Gerais 33600-000, Brazil
3. Veterinary School, Federal University of Minas Gerais., Avenida Antônio Carlos, 6627, Belo Horizonte, Minas Gerais 30123-970, Brazil