A
sprayer device including a generator for generating an air
stream having a predetermined velocity and a
nozzle unit for the
discharge of liquid therefrom, whereby to produce a mist
stream capable of being propelled to a predetermined location. The mist
stream has a measurable and controllable lateral dimension at the predetermined location. The
sprayer device is used particularly for moistening cattle, especially cows, in sheds, and taking into account the effect of the wind. Rows of sprayers project water sprays directed toward the cattle. The sprayers may be angularly shifted to take into account the deviating effect of the wind. A processor calculates the
angular shift that is needed for the existing
wind direction and intensity. All the sprayers concurrently receive the
angular shift, which is transmitted to the first
sprayer from a control
station and successively from each sprayer to the next. In this way, a plurality of sprayers can be controlled even if they are not arranged in straight lines or on a
single level, depending on the structure of the cattle shed.