Farm fences could be history as an Otago farm tests some cattle collars with a difference.
State-owned enterprise Landcorp owns two farms in the Waipori area, both of which have land bordering Lake Mahinerangi.
However, it faces the problem of fencing hundreds of kilometres to stop stock entering waterways.
As a potential solution, this week it started a two-month trial, run by AgResearch, to test virtual fencing technology.