Abstract: Automated device for the controlled feeding of substances to animal containment recipients in an animal breeding facility, including at least one rack for such animal containment recipients, said racks being arranged in lines (1) comprising a plurality of animal containment recipients (2), in which said recipients are arranged in the form of a grid on the rack (1); wherein the device includes a robot (3) with a locomotion platform, a lifting mechanism, a feeding platform, a feeding circuit and a central processing unit, and travels on a horizontal, linear track (9) having a reflective strip (10). The automated device solves the problems of the prior art, as it travels between various lines of racks (1), preventing the need for installing individual systems for each rack (1), having high precision in terms of Cartesian coordinates when feeding the animals in the recipients (2), and including laser scanning sensors (30) and optical sensors for following a reflective strip (32).