A device for detecting a is considered probable lame of a dairy cows - was to be selected to the cow (13) has, in a defined spatial relation to an automatic milking parlour or the like skeleton container (12) one of a cow (13) by means of a target trigger (16) in the case of the skeleton container (12) the triggerable camera (11), which a difference former (18) for this receptacle (15.1) and for an occasional reference image (15.0) of the skeleton container (12) without cow (13) is connected downstream, as well as a curvature - analyzer (23) for the course of the in the resulting image (19) scanned after the shaving operation (21) of the cow (13). At least a program-controlled image processing (17), a coloring of the background (25) of the receptacles (15.0, 15.1) and / or an inking of a through the ridgeline (21) limited strip (20) in the difference - image (19) are used for.
