1. Department of Preventative Veterinary Medicine and Animal Reproduction; School of Agricultural and Veterinary Sciences; São Paulo State University; Jaboticabal Brazil
2. Brazilian Agricultural Research Corporation-Embrapa Goats and Sheep; Coronel Pacheco Brazil
3. Faculty of Veterinary Medicine; Fluminense Federal University; Niterói Brazil
4. Department of Biomedical Sciences; Ontario Veterinary College; University of Guelph; Guelph ON Canada