1. Departments of Veterinary Physiology, Obihiro University of Agriculture and Veterinary Medicine
2. Department of Dairy Science, Faculty of Agriculture, Hokkaido University
3. Department of Veterinary Internal Medicine, Obihiro University of Agriculture and Veterinary Medicine
4. The National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine
5. )Nutritional Science Laboratory, Morinaga Milk Industry Co., Ltd.