岡山大学農学部 Acta Medica Okayama 0474-0254 85 1 1996 東南アジア諸国の牛の日本の牛による改良の試み 59 62 EN Hiroshi Wada Kazue Tanaka Shiroh Okushima Yasuhiro Kondo Yasuo Kawamoto L.A. Lantug J.B. Marangkey The Project was designed to improve the performance of cattle in Southeast Asia, using Japanese Cattle, Frozen semen of the Japanese Brown breed of cattle was send by air to Manado, North sulawesi, lndonesia. The frozen semen was inseminated to P. O. (Peranakan Ongole) cow. A female hybrid (F1) was produced after duration of pregnancy of 289 days. This is the first hybrid of cattle between Japanese Brown breed cattle and Peranakan Ongole in lndonesia. We call F1 of crossbreed of Ongole with Japanese Brown breed cattle, Jabragole. No potential conflict of interest relevant to this article was reported.