This pusher device (12) comprising a support (22) and a pusher member (14) borne by the support, the pusher member (14) being designed to push feed along the ground in a transverse direction (T) resulting from the movement of the pusher device (14) in a longitudinal direction (L) perpendicular to the transverse direction (T) is characterized in that the pusher member (14) is translationally mobile with respect to the support (22) in the transverse direction (T). Application to an automatic vehicle for distributing feed to an animal rearing installation.
