Penny MilesRNZ·8 Jun, 2026 09:41 PM4 mins to readCows are wearing solar-powered GPS smart collars on many farms as part of virtual fencing systems. Photo / RNZ, Sally RoundCows are wearing solar-powered GPS smart collars on many farms as part of virtual fencing systems. Photo / RNZ, Sally RoundBy Penny Miles of RNZOpinion is split among vets, farmers and animal welfare groups around animal welfare associated with virtual fencing.
The solar-powered GPS collars, referred to as “wearables”, are widely seen as a big part of the future of farming for dairy cows and
