Dr. Kritapon Sommart is an Associate Professor of Ruminant Nutrition at the Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Thailand. He earned his B.Sc. (1990) and M.Sc. (1992) in Animal Science from Khon Kaen University, and his Ph.D. in Ruminant Nutrition (1998) from the University of Newcastle upon Tyne, UK. His research focuses on sustainable beef and dairy cattle production in tropical regions, emphasizing energy metabolism, enteric methane reduction, and the use of agro-industrial by-products such as cassava pulp, broken rice, and palm kernel cake. He also examines nutrient and energy requirements, feed digestibility, rumen fermentation, and the timing of dietary nutrients to improve animal performance while minimizing environmental impact. His notable publications include pioneering work on methane prediction models for Southeast Asian cattle, energy requirement studies using indirect calorimetry, and the development of fermented total mixed ration, published in leading journals like Animals, Asian-Australasian Journal of Animal Sciences, Ecology and Evolution, Agriculture, Ecosystems and Environment, and Environment, and the Journal of Cleaner Production. His efforts in climate-smart livestock production have advanced both scientific knowledge and practical approaches in tropical cattle systems.