1. Department of Veterinary Medicine and Surgery; College of Agricultural Sciences and Veterinary Medicine, São Paulo State University ‘Julio de Mesquita Filho’; Jaboticabal Brazil
2. Preventive Veterinary Medicine and Animal Reproduction; College of Agricultural Sciences and Veterinary Medicine, São Paulo State University ‘Julio de Mesquita Filho’; Jaboticabal Brazil
3. Department of Animal Pathology; College of Agricultural Sciences and Veterinary Medicine, São Paulo State University ‘Julio de Mesquita Filho’; Jaboticabal Brazil
4. Veterinary Medicine College, Federal University of Para (UFPA); Castanhal Brazil