1. Faculty of Agriculture; Saga University; Saga Japan
2. Faculty of Animal Husbandry; Bangladesh Agricultural University; Mymensingh Bangladesh
3. Animal Resource Production Division; The United Graduate School of Agricultural Sciences, Kagoshima University; Kagoshima Japan
4. Division of Cattle Research; Saga Prefectural Livestock Experiment Station; Saga Japan
5. Livestock and Grassland Research Division; Kyushu Okinawa Agricultural Research Center, NARO; Kumamoto Japan
6. Faculty of Agriculture; University of the Ryukyus; Okinawa Japan