Affiliation: | 1)Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080–8555, Japan;2)Department of Basic Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro 080–8555, Japan;3)National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080–8555, Japan |