Devices likened to “fit-bits” for cows have been developed by fifth generations farmers David and Melita Smith, in an attempt for farmers to keep better track of their livestock.

Founded in 2016, the start-up Ceres Tag has developed a smart ear tag using GPS to track location, accelerometers to monitor movement, and temperature to measure health.

The tags aim to save farmers time and money when compared to the costs of manually tracking livestock, and were trialled on 100 cows at the CSIRO’s Lansdown Research Station near Townsville last week.