1. Department of Veterinary Medicine, Laboratory of Parasitology, Federal University of Viçosa, Av. P.H. Rolphs, Viçosa Campus, 36570-000 Viçosa, MG, Brazil
2. Department of Veterinary Medicine, University Vila Velha, Avenue Comissário José Dantas de Melo, 21, Boa Vista, 29102-920 Vila Velha, ES, Brazil