Method and apparatus for delivering fluid droplets onto an open and stationary tray

A method for delivering droplets of fluid onto an open tray (15) containing birds, said tray (15) being fixed, characterized in that:

• a) a movable arm (16) is moved above the tray (15), in translation in a first direction, the movable arm carrying a first set of dispensing nozzles (18) and a second set of dispensing nozzles (19), said first and second sets of dispensing nozzles being arranged to cover an entirety of a dimension of the tray (15) in a second direction perpendicular to the first direction, wherein, said moveable arm is progressively accelerated until said moveable arm reaches a constant or substantially constant movement speed and, after passage of said moveable arm above said tray, said movable arm is progressively decelerated to avoid fluid losses, and wherein the arm is only moved at a constant speed when directly over the tray;
• b) droplets of at least one first fluid are dispensed by spraying by means of the first set of dispensing nozzles (18), and
• c) after step (b), at least one second fluid is dispensed, distinct from said at least one first fluid, by ejection of individual drops by means of the second set of dispensing nozzles (19).