Abstract: A fence line has a series of electrified wands extending outwards of the fence line at intervals. Each wand is arranged such that in the event a livestock animal walks along the fence line it will contact the wand and the wand will move in the direction the animal is moving so as not to break away from the fence line. At the same time the wand will deliver an electric shock to the animal to deter it from walking along the fence line subsequently. After delivering the shock, the wand moves to assume the disposition it had prior to contact with the animal.