Mangisah I, Krismiyanto L, Yunianto V D, Mulyono M, Sukamto B, Wahyono F and Suthama N 2020 Studies on intestinal ecology and growth performance of Tegal ducks fed with Lactobacillus casei and porang (Amorphophallus oncophyllus) tuber extract. Livestock Research for Rural Development. Volume 32, Article #133. Retrieved , from http://www.lrrd.org/lrrd32/8/istna32133.html