Effect of Probiotic Bacillus megaterium PTB 1.4 on the Population of Intestinal Microflora, Digestive Enzyme Activity and the Growth of Catfish (Clarias sp.) - Afrilasari, Wahyu; Study Program of Microbiology, Department of Biology, Faculty of Mathematic and Natural Science, Bogor Agricultural University, IPB Dramaga Campus, Bogor, West Java (Bogor Agricultural University, Indonesia, 2018)