The installation mode of the tray on the conveying pipe is divided into a stationary type and a swing and a swing type. The adjustment if poultry amount of the tray is divided into a 13 shifts, and the shifts are conveniently adjusted according to the need. The inner cylinder can adjust the discharge amount till the tray is closed; The discharge amount can be adjusted by the grabbing the outer grille by band and rotating to position up and down; the mode is convenient, accurate and quick; The tray bottom can be take down, placed on the ground, and used as a feeding plate of chick The V-shaped corrugated tray bottom can reduce the stock on the tray bottom, make the chicks eat fresh food, and can prevent the chicks from negatively lying in the tray to eat or rest for a long time; The edge of the tray inclines toward the center of the tray, which can avoid the waste caused by the spilling of the forage. The outer edge, which is smooth and inclines inward, prevents the crops of the chicks from being hurt, and makes them eat safely and comfortably; The tray bottom is suspending detached , and has convenient and sanitary washing and installation. Raising Amount:40-55/tray, 150kg live weight