Method and apparatus for controlling animals with electronic fencing

摘要: An electronic fence is utilized to control animal access as an alternative conventional posts and barbed wire fences. The fencing includes stationary field transmitters with variable ranges placed around the perimeter of accessible area. Each in area wears a small ear tag receiver. When enters exclusion zone, receiver triggers audible tone, then shortly thereafter electrical stimulus. tones stimuli may be repeated three more times at four second intervals until exits zone. If hasn't responded, safety device locks up or disables unit prevent from receiving further stimuli. A remote unlock transmitter located areas frequented by animals, such salt licks, mineral water sources, unlocks any tags which have become locked thus improves integrity system. also portable hand held without stimulation animal. test system providing stimulus for purpose moving selected animals through zone when desired.