The purpose of this study was to to determine the effect of adding kandis acid extract acidifier to drinking water on the pH value, total microbes and bacteria (Lactic Acid Bacteria (LAB) and Escherchia colli (E-colli)) in the caecum of kampung chickens. This research was carried out for 2 months in the Poultry Cage, Animal Husbandry Study Program, Department of Animal Technology and Industry, …