The objectives of this research was to determined digestibility of palm kemel sludge supplemented with natural antioxidant of wuluh starfruit. This research was held in laboratory of animal feed and nutrition, Agriculture Faculty of Sriwijaya University from October 2010 - Mei 2011. Completely randomized design with 4 treatment and 5 replications were done with Palm kemel sludge as control (P0)…