Modular multi-cage device i.e. collective housing, for fattening of ducks, has contention rakes rotated around axle so as to reduce volume of cage in vertical plane, where rakes are connected between each other by round bar

摘要

The device has contention rakes (E) rotated around an axle so as to reduce volume of a cage in a vertical plane. The rakes are connected between each other by a round bar crossing through eyelets. Each rake is returned back to a fattening position by traction of a secondary cable fixed on the round bar. The secondary cable passing through a pulley is connected to a central cable through a spring. The central cable is towed through a manual winch fixed at an end of a fattening line.