Heng, Y.Yeong, C.Y.F.Chong, S.M.Mathew, A.2025-08-042025-08-042021Journal of Veterinary Medical Science, 2021; 83(9):1401-14060916-72501347-7439https://hdl.handle.net/2440/146504Three eastern bongos (Tragelaphus eurycerus isaaci) presented acutely with hemorrhagic diarrhea at the Singapore Zoo, thought to be caused by a mouldy batch of hay. Repeated fecal tests were negative of parasites and common gastrointestinal bacteria including salmonella and campylobacter. The diarrhea resolved for all individuals after a week of leafonly diet. However, 2 individuals developed signs of colic. Both animals were anesthetized for examination including blood tests and imaging studies. The findings were consistent of gastrointestinal ileus and a possible impaction. With intensive treatment involving repeated sedations for fluid therapy administration and treatments for gastrointestinal impaction, one individual eventually made a full recovery, but the other individual died due to septic peritonitis secondary to a rupture in the spiral colon. Persistent supportive therapy may be vital in treating severe gastrointestinal disease in this species.en© 2021 The Japanese Society of Veterinary Science. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. (CC-BY-NC-ND 4.0: https://creativecommons.org/licenses/by-nc-nd/4.0/)bongo; gastroenteritis; ileus; impaction; Tragelaphus eurycerusAnimalsAntelopesEnteritisDietSingaporeJournal article10.1292/jvms.21-0096719536Chong, S.M. [0000-0003-3045-2465]