^○Kaneko Takuya¹, Miura Takayuki¹, Tanimoto Morimasa², Sato Kaoru¹ (1.Nippon Veterinary and Life Science Univ., 2.Univ. of Yamanashi)

^○TORII TSUYOSHI, UCHIDA KENJI, MOTOSHIMA HIDEMASA, KATANO NAOYA (Yotsuba Milk Products Co., Ltd.)

^○Nakamura Tadashi¹, Takahashi Mei¹, Atsuya Kousuke¹, Takaya Masahiro², Kasai Daisuke² (1.Obihiro Univ. of Agriculture and Veterinary Medicine, 2.Tokachi Zaidan)