Achmad Sadeli, born in Bandung on November 22, 1986, currently works as a lecturer at the Department of Animal Husbandry, Faculty of Agriculture, Universitas Sumatera Utara. Sadeli specializes in the production of cattle, especially small ruminants. He holds a Master of Science degree from Gadjah Mada University and is active in various research and community services. His research and publications mainly relate to utilizing local waste as animal feed. Currently, Sadeli is actively researching local waste in North Sumatra that can be used as animal feed, especially small ruminant feed. Sadeli has served as an Expert Staff to the Dean of the USU's Faculty of Agriculture (2016-2020), Head of Research, Development, Innovation, and Cooperation of the USU's Integrated Research Laboratory UPT (2020-2021), and currently carrying out his duties as Secretary of the USU's Animal Husbandry Study Program (2021-2026).