ABSTRAK This study was conducted in September-November 2018. This study aimed to determine the digestibility of feed using fermented chicken feather flour Bacillus sp. In the Digestive System of Snubnose dart (Trachinotusblochii, Lacepede). This research method uses an experimental method with Completely Randomized Design (CRD) using one factor from 6 treatment levels and 3 replications. Tre…