With virtual fencing, boundaries are drawn entirely by global positioning satellite (GPS) and exist only as a line on a computer. There are no wires or fixed transmitters used.The animals wear collars containing software that identifies where they are and emit a sound when they approach the boundary. The sound replaces the visual cue of a conventional electric fence that cows learn to avoid.
The sophisticated software embedded in the system enables it to respond to varying animal temperaments. The research, overseen by an independent animal welfare expert, also showed the animals are not unduly stressed by the virtual fence.
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<table style="border:1px solid;padding:2px; width:310px;" ><tr><td><a href="https://www.scienceimage.csiro.au/image/10926/"><img src="https://www.scienceimage.csiro.au/images/embed/300_0_GA11783.jpg" width="300" alt="Cattle wearing 'virtual fencing' collars" style="margin: 0 0 5px 0; border: 0px;"></a><br/><a href="https://www.scienceimage.csiro.au/image/10926/">Cattle wearing 'virtual fencing' collars</a><br />by CSIRO</td></tr></table>
![]() Cattle wearing 'virtual fencing' collars by CSIRO |
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