A year on from one of ChewintheCud's most talked-about episodes, Ian Garner, Head of R&D at Antler Bio, returns to take epigenetics from theory into practice on real dairy farms.

This time the conversation turns to application. John Walsh, Director at Friars Moor Livestock Health and a dairy farmer running 250 cows through four robots, joins to share how his practice used the ADOPT grant to fund EpiHerd testing across three of its own vets' farms. He walks through what the process actually involves on farm, from blood sampling to waiting on results, and how the trial came about in the first place.

Ian explains how Antler Bio's database has grown since last year, now spanning farms across the UK, Ireland, Scandinavia and Canada, and how that extra scale is sharpening the picture on signatures like vitamin D. Sarah and Andrew press both guests on cost, return on investment, and how quickly farmers can expect results back once samples are taken.

For John's own herd, an early look at the results already has inflammation, immunity and protein metabolism high on the list to act on, with a full results meeting still to come. It is a candid look at what it actually takes to bring epigenetics onto a working dairy farm, warts and all.

This episode was recorded in August 2026, and all information was correct at the time of recording. Please note this transcript was generated using AI transcription software. Despite best efforts to ensure accuracy, there may be some errors in the final piece.

Has your herd's genetics ever felt like it was underperforming its potential?

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