A lamb castration clamp (100) comprising: a pair of jaws (102), each jaw comprising an inner contact surface (110) and an outer engagement formation (112) for force to be applied to the jaws； hinge apparatus (106) connecting proximal ends of the jaws such that the jaws are movable from an open position, in which the jaws are spaced apart to receive the neck of the scrotum of a lamb, to a closed position, in which the jaws are close together so that the contact surfaces crushingly clamp the spermatic cords and nerves in the neck of the scrotum so as to stop conduction of the nerves and blood flow to the scrotum； and a retaining element (108) for retaining the jaws in the closed position.
