The short version

eShepherd is built around one rule: sound first, pulse rarely. A tone always comes before any pulse, and trained cattle respond to the tone alone. There is no vibration, and nothing happens before the cow reaches the line.

What happens at the line

When a cow walks up to the virtual fence, her neckband plays a tone for up to 5 seconds. If she turns back during that time, the tone stops and that is the end of it.

If she keeps walking through the tone, a mild pulse follows. It is brief and low-energy, well below a traditional electric fence. Another tone follows before any further pulse, so the sequence always gives her a chance to turn.

During training, cattle meet the pulse a few times while they learn what the tone means. After that, most turns happen on the tone alone. The pulse is there to give the tone its meaning, not to do the work day to day.

The pulse and sound levels are set by Gallagher and cannot be turned up on farm.

The safeguards built into every neckband

Several protections sit around the cue so that a cow is never pushed into a situation she cannot get out of.

Cues stop if she panics. The neckband watches how fast the animal is moving. If a cow panics and runs, from a predator, a sudden noise or a disturbance in the herd, all cues stop straight away. They only resume once she has slowed to a walk for a while. Cueing an animal that is already frightened would do nothing for learning and nothing for welfare.

Cues stop if she goes through. If a cow pushes past the line and keeps going despite the cues, the neckband stops after a set number of attempts. She is then left alone until she walks back into the paddock on her own, and an alert tells you she is out. Walking back into the paddock never triggers a cue.

The strap breaks away. The top strap breaks away at 350 kg (770 lb) of force. If a cow gets caught on something, she can pull free.

Nothing happens until the line. Cattle are never cued for being near the fence, only for reaching it.

Built on research, overseen by an ethics committee

The approach rests on more than 20 years of CSIRO welfare research into virtual fencing. That work found that pairing an audio cue with a mild pulse leads to rapid learning and minimal lasting welfare impact in cattle.

The development and field use of eShepherd are overseen by an Animal Ethics Committee, which looks at the electrical stimulus, monitors how animals respond during training and after, and adjusts protocols based on what is seen in the field. The neckband is also CE and FCC certified.

Welfare beyond the cue

Most of the welfare case for virtual fencing has nothing to do with the cue itself:

  • No wire to get caught in. A virtual boundary removes the entanglement injuries that come with physical fences.
  • Less mustering. Moving cattle by sending a new paddock means fewer stressful handling sessions.
  • Fresh feed more often. Rotational grazing becomes easier, which helps nutrition.
  • Earlier warnings. Every neckband tracks movement, so an animal that has barely moved for hours raises an alert.

The farmer's part

The system does a lot on its own, but welfare is still a shared job. Fit neckbands correctly and check them regularly, keep paddock designs simple, never chase cattle toward an active fence, and act on alerts promptly. Training cattle in calm conditions, at their own pace, is what makes sound-first work.