Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan (Y.U., M.Ij., O.Y., M.S., A.A.); Showa Pharmaceutical University, Machida, Japan (N.M., H.Y.); School of Veterinary Medicine, Kitasato University, Towadashi, Japan (H.K.); School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Japan (H.T.); Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan (H.M., S.M.M.N., Y.I., M.Is.); and Graduate School of Agriculture, Ehime University, Matsuyama, Japan (H.M.)