The present disclosure provides a door assembly for an animal enclosure. The assembly includes a door frame having a plurality of interconnected horizontal and vertical wires that define an opening for an animal to pass therethrough. The assembly also includes a door configured to move between an open position and a close position relative to the door frame. A latch is pivotably coupled to the door and includes a mechanism that is removably coupled to the door frame. The assembly further includes a first vertical wire and a second vertical wire of the door. A first guide wire and a second guide wire are coupled to the door frame. The first vertical wire is coupled to and moves along the first guide wire between the open and close positions, and the second vertical wire is coupled to and moves along the second guide wire between the open and close positions.

A livestock cage may have a frame, a generally planar aluminum top sheet attached to the frame, a generally planar aluminum bottom sheet attached to the frame opposite the top sheet, a first and a second generally planar aluminum side sheet attached to the frame extending transverse to the top sheet and the bottom sheet, and a generally planar back sheet attached to the frame and transverse to the top sheet, the first side sheet, the second side sheet, and the bottom sheet. The top sheet, the bottom sheet, the first side sheet, the second side sheet, a front, and the back sheet define an interior volume of the cage. A plurality of livestock is within the interior of the cage.

A livestock cage may have a frame, a generally planar aluminum top sheet attached to the frame, a generally planar aluminum bottom sheet attached to the frame opposite the top sheet, a first and a second generally planar aluminum side sheet attached to the frame extending transverse to the top sheet and the bottom sheet, and a generally planar back sheet attached to the frame and transverse to the top sheet, the first side sheet, the second side sheet, and the bottom sheet. The top sheet, the bottom sheet, the first side sheet, the second side sheet, a front, and the back sheet define an interior volume of the cage. A plurality of livestock is within the interior of the cage.

A rearing-keeping facility for the staggered rearing of poultry animals, in particular rearing aviary, is disclosed and includes at least one first rearing plane and a second rearing plane arranged above the first rearing plane. The rearing planes are configured for keeping the poultry animals, and the first rearing plane has a first lateral opening towards at least one side of the rearing-keeping facility and the second rearing plane has a second lateral opening towards the one side. A door arrangement is provided for closing the openings. The door arrangement has a closure arranged in a vertically displaceable manner with respect to the two openings and configured for releasing or for closing the first opening, the second opening, and both openings.