1. Department Veterinary Medicine – Ruminant production, UNOPAR, Londrina, Brazil
2. Laboratory of Experimental Parasitology and Biological Control, Universidade Vila Velha, Vila Velha, Brazil
3. Department of Clinic and Surgery, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
4. Laboratory of Veterinary Microbiology, Universidade Vila Velha, Vila Velha, Brazil
5. Laboratory of Veterinary Parasitology, Universidade Federal de Viçosa, Minas Gerais, Brazil