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Science

Head Shepherd

by Mark Ferguson

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Latest episodes

  • Animal health planning for sheep and beef farms with Dr Dave Robertson

    October 25, 2026 · 41 min

    Dave Robertson is a large animal vet at Oamaru’s Vet Centre, with a lifelong interest in sheep breeding and a particular focus on helping sheep and beef farmers understand and improve all elements of animal health. Growing up in a…

  • Using carcass feedback to improve lamb production with Isabele Roberts

    October 18, 2026 · 47 min

    What can carcass feedback tell us about breeding better lambs?  Our guest this week, Isabele Roberts, shares how six years of carcass data, research and on-farm trials have shaped her approach to lamb production. Isabele runs Ridgehaven, a…

  • Ferg's thoughts on replacement ewe selection

    October 11, 2026 · 31 min

    Selecting replacement ewe lambs is an opportunity to make more genetic progress in a flock, but how much are we missing when selection relies on visual assessment alone? In this episode, Ferg shares his thoughts on improving replacement…

  • Understanding immune competence and worm resistance in sheep with Emma Noble-Campbell

    October 4, 2026 · 33 min

    neXtResist can tell you which sheep are fighting off worms, even when worm numbers are low. Emma Noble-Campbell has been running the test for New Zealand breeders since she joined us in February. Emma grew up on a sheep and beef farm in…

  • Pulling the future towards you with Gus Balbontin

    September 27, 2026 · 40 min

    Join us to celebrate our 300th episode!  For anyone lucky enough to attend LambEx this year, Gus Balbontin was one of our favourite speakers. So, when he agreed to come on for our special 300th episode, we were beyond excited. The messages…

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  • The changing role of breed societies with John Yates

    September 20, 2026 · 49 min

    John Yates has spent the past 18 years helping develop the British Texel Sheep Society, including bringing performance recording in house and building the iTexel database. Rather than relying on an external system, the Society has…

  • From the shearing shed to sheep genetics with Reece Michelle

    September 13, 2026 · 24 min

    Our newest consultant, Reece Michelle, took a slightly roundabout route into his new role with neXtgen Agri, from studying agricultural science at Lincoln and working with Headwaters to shearing and fencing before moving across the…

  • Maximising eating quality and profitability in sheep with David Packer

    September 6, 2026 · 38 min

    This episode comes from our Productivity & Profitability podcast, produced in partnership with Meat & Livestock Australia. How do you breed a lamb that consistently delivers a better eating experience? For decades, sheep producers have…

  • Redefining the Corriedale with Peter Blackwood

    August 30, 2026 · 35 min

    Most breeders pick one thing to improve. Peter Blackwood picked several. When he and his wife Claire took over a Corriedale stud in 2006, they committed to lifting fertility, carcass shape and wool fineness - all at once - by using…

  • Questioning tradition in Merino breeding with Dom Hallam

    August 23, 2026 · 41 min

    Looking to change your Merino genetics? What actually happens when you switch types? For our guest this week, Dom Hallam, it started with his parents. Coming from a traditional fine wool background, they began looking for something…

  • Ferg’s thoughts on putting a dollar value on genetic change

    August 16, 2026 · 26 min

    What is a trait actually worth to a farming business? Ferg has spent much of his career talking about the value of genetics, but it hasn't always been easy to put that value into real dollar terms that apply to individual farming…

  • Data driven sheep breeding at Hannaton with Jonno Hicks

    August 9, 2026 · 41 min

    What's the difference between a sheep that looks "right" and a sheep that breeds "right"? Jonno Hicks from Hannaton Poll Merinos and White Suffolks, reckons he's finally found the answer. In this week's episode, Jonno talks through his…

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About the show

Mark Ferguson from neXtgen Agri brings you the latest in livestock, genetics, innovation and technology. We focus on sheep and beef farming in Australia and New Zealand, and the people doing great things in those industries. To learn more about neXtgen Agri, visit www.nextgenagri.com.