A feed trough with rocking action for feeding livestock comprises a frusto-cylindrical body member being adapted to form a horizontally disposed channel having two side walls and a rounded bottom wall in contact with the ground. Each end of the channel is closed by an end wall that is connected to the body member and each of the side walls has a roll stop attached to the side wall such that the roll stop is not in contact with the ground when the body member is in an upright position with the rounded bottom wall in contact with the ground. The combination of the rounded bottom wall and the roll stops provide a rocking action, such that when the trouch is stepped on by an animal, the trough will rock in the direction of the force exerted by the animal until the roll stop comes into contact with the ground and operates to return the trough to its upright position.