Paiwan Panyakaew*, Jan Thomas Schonewille, Veerle Fievez, Gunjan Goel, Nico Boon, Chalermpon Yuangklang and Wouter Hendriks J. Sci. Agri. Technol. (2020) Vol. 1 (1): 26-32 DOI : https://doi.org/10.14456/jsat.2020.4 Abstract Krabok and coconut oil were assessed for their ability to affect rumen protozoa via a 3×3 Latin square design with three rumen cannulated beef cows. The diets