Abstract: An automatic feeding dispenser with a cylindrical feed supply conduit, an accumulation tray to supply feed to poultry and a shutter having at least one cylindrical portion, outer sliding and rotatable with respect to the supply conduit.

Abstract: A feedbox for breeding poultry includes at least one main protection grate mounted on a feed storage tub and with dividing plates and openings to allow the poultry access to the feed. The feedbox utilizes an auxiliary grate slidingly or rotationally joined to the main protection grate and equipped with a plurality of peripheral tips. The tips do not interfere with the openings of the main protection grate in at least a first relative position of the auxiliary grate with respect to the main grate and, vice versa, the tips at least partially obstruct one or more of the openings in at least a second relative position of the auxiliary grate with respect to the main grate.