We dissected and described the macroscopic anatomy of the stomach and intestines of five adult Brown Brocket deer (Mazama gouazoubira), a south american cervid species. The findings of our study as ruminal papillae evenly distributed across the rumen, papillated rumen pillars, the large reticulum with low reticular crests and the small omasum represent typical characteristics of browser ruminants. The ratio of the small intestine to the large intestine of 2.0 appears within the ‘browser range’.