A live-bottom trailer having a conveyor system. The conveyor system including: a frame; a conveyor mounted to the frame and having a carrying surface and an opposite rear surface, the conveyor operable to move the carrying surface between a first end of the live-bottom trailer and a second end of the live-bottom trailer while the rear surface passes over a support surface of the frame; and a pressurized air system operable to direct pressurized air at the rear surface of the conveyor to reduce friction between the support surface of the frame and the rear surface of the conveyor.