American ranchers are gradually entertaining the idea of using virtual fence systems to graze more cattle over more space without the cost and hassle of continuous fence upkeep. Similar to the invisible fence system used for dogs, the virtual system keeps cattle within a specified boundary. Farmers benefit by not having to worry about building fences or watching over cattle with cowboys on horseback. That translates to lower labor and material costs. Virtual fencing is basically a super durable collar the size and weight of a normal cowbell that contains a GPS transmitter. The GPS keeps track of where the cow is and establishes borders where the cows can’t go. Once cows get too close to the virtual boundary line, the collars play a sharp auditory signal the cows don’t like. If they get closer, the sound gets louder, and if they pass it, the collar begins to vibrate. Farmers report that the cows catch on fast. They hear the tone and don’t even stop grazing, they just change directions and go on about their business. Physical fencing costs around $15,000 per mile, which for a 4-mile pasture adds up to $60,000. By contrast, the collars and broadcast towers cost $50,000 to set up, and that’s it. The collars allow for greater productivity, rotational grazing, and no need for maintenance and materials. It’s a win-win for cattle ranchers.
