Natsir M H, Sjofjan O, Widodo E, Ardiansah I and Widyastuti E S 2019: Effect of either non-encapsulated or encapsulated acidifier-phytobiotic-probiotic on performance, intestinal characteristics and intestinal microflora of local hybrid ducks. Livestock Research for Rural Development. Volume 31, Article #10. Retrieved , from http://www.lrrd.org/lrrd31/1/emhan31010.html