Paengkoum S, Wanapat M, Wachirapakorn C, Nontaso N. The Effect of Roughage and Urea Solution Infusion Levels on Ruminal NH3-N Concentration and Nutrient Digestibility in Beef Cattle and Swamp Buffaloes. SEHS [internet]. 2013 Mar. 20 [cited 2026 Oct. 10];4(1):47-55. available from: https://li01.tci-thaijo.org/index.php/sehs/article/view/7352