An embodiment of the invention is directed to a mobile system for cleaning teats of milk-producing animals, wherein the animals are temporarily housed in a building and the teats are cleaned or disinfected before a milking operation is started. The system includes a mobile cart configured for movement along a floor of the building and a container on the cart containing a disinfectant solution. A remotely operable hand-held applicator is provided in fluid communication with the container for cleaning teats of a milk producing animal. The system further includes a pump, a control circuit, and a motor, for operating the system to disinfect and clean the teats of the milk-producing animal. In an embodiment, the container, power source, control circuit and pump are disposed on the cart with the hand-held applicator operatively connected to the control circuit, motor and container.