A portable livestock handling system including a wheeled chassis and an animal handling device, wherein the animal handling device includes a base, a first wall, and a second wall, wherein the walls are substantially at right angles to the base and wherein the second wall is pivotally moveable relative to the first wall, characterised in that the second wall includes a plurality of segments, wherein at least one segment is pivotally moveable relative to a second segment of the wall, wherein the moveable segment is configured to move in a first direction towards an animal positioned between the first and second walls and a second direction away from the animal.