A device for feeding a liquid to an animal includes a nipple member (6), a reservoir (14) for the liquid (13), a passage (15) having an extension between the reservoir (14) and the nipple member (6), a feeding member (16, 19) arranged to allow a supply of liquid through the passage (15) to the nipple member (6), and a control member (7, 11, 18) arranged to control the activation of the feeding member (16, 19). The control member is arranged to detect the presence of a part of the animal in a predetermined position and to initiate activation of the feeding member (16, 19) when the part of the animal is detected in the predetermined position.