[1] Obihiro Univ Agr & Vet Med, Natl Res Ctr Protozoan Dis, Inada Cho, Obihiro, Hokkaido 0808555, Japan
[2] Sher E Bangla Agr Univ, Dept Microbiol & Parasitol, Dhaka 1207, Bangladesh
[3] Obihiro Univ Agr & Vet Med, Dept Vet Med, Obihiro, Hokkaido 0808555, Japan
[4] Tohoku Univ, Grad Sch Agr Sci, Lab Sustainable Anim Environm, 232-3 Yomogida, Osaki, Miyagi 9896711, Japan
[5] Zagazig Univ, Fac Vet Med, Dept Anim Med, Infect Dis, Moawwad 44511, Qesm Awel Az Za, Egypt
[6] Kyoto Prefectural Univ Med, Dept Infect Dis, Kamigyo Ku, 465 Kajiicho,Kawaramachi Hirokoji, Kyoto 6028566, Japan
[7] Fukuoka Prefecture Dairy Farming Cooperat, Fukuoka Dairy Cattle Artificial Inseminat Clin, Nishi Ku, 1-13-4 Susenji, Fukuoka, Fukuoka 8390832, Japan
[8] Fukuoka Prefecture Dairy Farming Cooperat, Kurume Dairy Cattle Artificial Inseminat Clin, 75-2 Airaku,Ohashimachi, Kurume, Fukuoka 8390832, Japan
[9] Obihiro Univ Agr & Vet Med, Vet Med Ctr, 2-11 Inada Nishi, Obihiro, Hokkaido 0808555, Japan
[10] Gifu Prefectural Livestock Res Inst, Dairy Res Dept, 1975-615 Kubohara,Yamaoka Cho, Ena, Gifu 5097601, Japan
[11] Miyazaki Agr Mutual Aid Assoc, 17938-5 Nyuta Shintomi Cho, Miyazaki 8891406, Japan
[12] Soo Agr Mutual Aid Assoc, 2253 Osumicho Tsukino, Soo, Kagoshima 8998212, Japan
[13] Kagoshima Univ, Joint Fac Vet Med, 1-21-24 Korimoto, Kagoshima 8900065, Japan
[14] Azabu Univ, Sch Vet Med, Chuou Ku, 1-17-71 Fuchinobe, Sagamihara, Kanagawa 2525201, Japan