


Tommy The Vet: My Story
I’m Tommy Heffernan — veterinary consultant, gut microbiome specialist, and Head of Technical and Brand Development at Precision Microbes, an animal health biologics company working at the frontier of microbiome science.
I qualified as a vet from University College Dublin in 2002 and have spent more than two decades working across livestock, equine, and animal health — from running a large mixed-animal practice in Co Wicklow to consulting at an international level across Europe and beyond.
Over that time I’ve built a reputation for translating complex animal health science into practical, real-world solutions that farmers, vets, and the animal health industry can actually use.
My credentials include:
— MVB, University College Dublin (2002)
— Graduate Certificate in Dairy Herd Health, UCD
— Master Cow Signals Trainer
— Nuffield Farming Scholar 2018
— Former Animal Health Specialist, Irish Farmers Journal
— Veterinary Consultant and Head of Technical and Brand Development, Precision Microbes
In recent years my work has centered on the gut microbiome — one of the most exciting and rapidly developing areas in animal health. Through my work with Precision Microbes, I help develop and communicate the science behind biological products that improve animal performance, reduce disease, and support a more sustainable approach to farming.
I work with farmers, vets, feed companies, distributors, and animal health businesses across Ireland, the UK, Europe, and international markets. My role spans consultancy, education, content, and commercial strategy.
I believe the best animal health advice is simple, science-based, and grounded in the reality of daily farm life. That hasn’t changed. What has changed is the scale and ambition of what’s possible.
If you’d like to work with me or find out more about Precision Microbes, get in touch below.
If you would like to send me your feedback, please contact me.
