Disclosed is a conveyor system for delivering feed to poultry cages which are organized in an oppositely facing, multi-level array. The system comprises a first endless conduit extending along an upper conduit run past an upper level of cages facing in a first direction, and extending along a lower conduit run past a lower level of cages facing in a second or opposite direction. A second endless conduit extends along an upper conduit run past an upper level of cages facing in that opposite direction, and extends along a lower conduit run past the lower level of cages facing in the first direction. Displaceable driver elements disposed in these endless conduits carry feed in trough runs past the adjacent cages. An overhead delivery conveyor delivers feed to these first and second conduits. First and second drop tubes permit the level of feed in the conduits to be adjusted. This adjustment discourages the poultry from playing with or raking the feed.