This is our A-type 3-layer battery cage, which is capable of accommodating 120 egg-laying hens. The battery cage features a semi-automatic feeding system, which also allows manual feeding. A filtering system is also installed on the cage, which effectively reduces worm infection and the spread of parasitic diseases, such as coccidiosis. In addition, the automatic watering system is also equipped. In order to ensure that all the hens are fed, we have installed voltage regulators to make up the deficit, which is quite common with long poultry cage systems.