1. Department of Applied Life Science; Faculty of Agriculture; Shizuoka University; Shizuoka Japan
2. Department of Agriculture; Graduate School of Integrated Science and Technology; Shizuoka University; Shizuoka Japan
3. Shizuoka Swine and Poultry Experimental Station; Kikugawa Japan
4. Research Institute of Green Science and Technology; Shizuoka University; Shizuoka Japan
5. Department of Bioscience; Graduate School of Science and Technology; Shizuoka University; Shizuoka Japan
6. School of Veterinary Science; Kitasato University; Towada Japan