A treatment device for an animal includes a treatment member (1), having a first end and a second end, a longitudinal rotary axis (X) extending through the treatment member and the first and second ends, a driving part connected to the treatment member brings about a rotational movement of the treatment member around the longitudinal rotary axis. A carrying member (2) carries the treatment member and the driving part. An anchorage member (4) anchors the carrying member to a stationary element. The carrying member includes a first pivotable connection (3), permitting the treatment member to swing about a first axis (Y), and a second pivotable connection (5), permitting the treatment member to swing about a second axis (Z). The second pivotable connection is provided laterally closer to the anchorage member than to the first pivotable connection.
