PODCAST · science
Head Shepherd
by Mark Ferguson
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.
Episodes
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Ferg's thoughts on replacement ewe selection
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 ewe selection. He explains how environmental effects can...
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Understanding immune competence and worm resistance in sheep with Emma Noble-Campbell
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 the North Island, studied agricultural science at Lincoln…
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Pulling the future towards you with Gus Balbontin
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 Gus shared during his talk have stuck with many. He...
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The changing role of breed societies with John Yates
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 developed an evaluation around the information its breeders are...
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From the shearing shed to sheep genetics with Reece Michelle
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 Tasman. Now splitting his time between neXtgen Agri and Murdoch...
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Maximising eating quality and profitability in sheep with David Packer
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 been selecting for traits they could easily measure…
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Redefining the Corriedale with Peter Blackwood
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 ASBVs. Two decades later, they've lifted lambing from 110% to…
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Questioning tradition in Merino breeding with Dom Hallam
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 different, eventually bringing sheep from New England into their...
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Ferg’s thoughts on putting a dollar value on genetic change
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 businesses. In this episode, Ferg explains how we plan to work out...
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Data driven sheep breeding at Hannaton with Jonno Hicks
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 shift from visual assessment to genomics and data-driven...
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How hoof overgrowth impacts bone structure and long-term lameness with Laura Deeming
Ever wondered what's actually happening inside an overgrown hoof? And can you fix it once the damage is done? Our guest this week looked into just that. Dr Laura Deeming did her PhD with Massey University and AgResearch on dairy goat hoof health. Many dairy goats are not hoof trimmed until their...
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Adding more value to every wool clip with Willy McSkimming
Willy McSkimming is modernising the shearing industry with a new app and an improved focus on wool classing and quality. After 23 years running a major contracting operation with his wife Tess, he's now doing things differently. Not happy with being left behind in comparison to other industries,...
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Using genomics to pick better replacement heifers with Geoff Hayes
How do you actually pick which heifers to keep? For many, selecting the top ones is easy, but it's those middle ones that are hard to choose between. For this week's guest, Geoff Hayes, the answer is genomics. Geoff and his wife Belinda started their Angus stud just 5 years ago, but began their...
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The science of farming with Pete Fennessy
Pete Fennessy has spent more than fifty years involved in science, genetics and livestock production, helping shape many of the ideas that transformed New Zealand’s sheep and deer industries. Pete spent two decades at Invermay before becoming General Manager of AgResearch’s Sheep, Deer and Equine...
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The process of precision sheep farming with Joshua Barton
This week on the podcast we have Joshua Barton chatting to Mark about the benefits of precision sheep management and the results it can get you. Josh is currently stockman at Hillcroft Farms and recently shared some great scanning results with us as the outcome of well-planned precision lambing....
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Building resilient farming businesses to keep up with global demand, with Richard Green
How do Australian and New Zealand farmers stay competitive when the rest of the world is changing faster than ever? For our guest this week, Richard Green, it starts by accepting that yesterday's thinking will not solve tomorrow's problems. "It frustrates the hell out of me when I hear us talk...
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Growing grass for sheep, stadiums and everything in between with George Fell
Long before performance recording became mainstream, George Fell's grandfather was building a sheep breeding programme around growth, efficiency and measured performance on pasture. Unable to find the genetics he wanted, he created them himself. Today, that same mindset runs through everything at...
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Turning grass into money - this time with cattle, with Joe Kerin
What does a cow actually cost to run? At Kerin Ag, every kilogram of utilisable feed has a value attached to it. That allows Joe Kerin and the team to measure whether an animal is genuinely paying its way. In this episode, Joe joins Mark to discuss how putting a dollar value on each kilogram of...
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Forty years at Wairere Romneys with Simon Buckley
Few people have had a front-row seat to the genetic improvement of New Zealand sheep quite like our guest this week, Simon Buckley. After growing up in Whangārei and starting his farming career at Castlepoint Station, Simon joined Wairere Romneys and has never left. Four decades later, he has...
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Refugia, resistance testing, and the future of worm management with Chloe Frank
Most sheep producers assume their drenches are working. Chloe Frank's job is finding out whether they actually are. After discovering how few producers in her region were monitoring worm burdens, Chloe launched Central Stock Health while still at university. She now travels from farm to farm...
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Data driven sheep breeding with James Trowbridge
This week on the podcast, Ferg introduces James Trowbridge, the newest consultant to join the neXtgen Agri team. James grew up in South Australia working alongside his parents, Margie and Bill Trowbridge, in both Merinos and the family artificial breeding business. After working across a range of...
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Genomic data management and the future of breeding values with Dan Garrick
What does it take to build the data systems that sit behind your genetic evaluations? This week on the podcast, Ferg catches up with Dan Garrick from Helical. Dan grew up on a sheep, beef and venison farm in the Manawatu before moving to the US at 13, where he went on to complete a PhD in…
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Lessons learned from LambEx with Jane Kellock
Jane Kellock joins Mark to talk through the production and business decisions that have shaped their Merino operation in South Australia’s Mid North. From running a non-mulesed flock for more than 20 years to building a breeding programme focused on lamb survival, Jane explains how genetics,...
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How to run a farm business your bank trusts, with Matt Hood
Matt Hood on farm succession, agribusiness banking, and building better farm businesses. Based in Marlborough, Matt has worked across sheep and beef, dairy, and viticulture businesses in both New Zealand and Australia, with a focus on succession planning, equity partnerships, and helping farm...
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Feet, finances and faster genetic gain with Chad Taylor from Mumblebone
You'd never ignore your interest rate, so why aren't you tracking your genetic gain? This week, Ferg catches up with Chad Taylor for an update on what has been happening at Mumblebone and the recent work around footrot and feet structure they have been involved with as part of the 'Genetics of…
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Turning lamb data into profit with Will Barton
This week, Mark catches up with Will Barton from Gundagai Meat Processors (GMP) to chat about what has changed since his last appearance on the podcast and where things are heading next for Gundagai. Gundagai has built a reputation for doing things differently, with a clear focus on eating…
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What practical mental health support looks like in the shearing industry with Carol Mudford
This week on the podcast, Mark chats with Carol Mudford to talk about her unconventional path into the shearing sheds and the work she is now doing to help improve mental health across the industry. Carol grew up around sheep but never planned to pick up a handpiece, starting her working life in...
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Breeding seedstock for tough country at Hazeldean, with Bea Litchfield
Bea Litchfield is Managing Director of Hazeldean, a sixth-generation family seedstock business running both Merino and Angus studs alongside commercial operations. Hazeldean is a large-scale seedstock business, and they produce around 600 Angus bulls and 400 Merino rams each year for clients…
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Key tips for improving the reproductive performance of your beef herd with Dr Shane Thomson
Join Mark and our guest this week, Dr Shane Thomson, to discuss some key points around reproductive performance in cattle. Shane is a veterinarian and partner at Holbrook Vet Centre in southern New South Wales, leading a team of 10 vets across a practice that's roughly 90% beef production. Cattle...
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Fat, fertility and the genetics of cow performance with Professor Wayne Pitchford
This week on the podcast, Professor Wayne Pitchford joins Mark Ferguson to discuss all things cow condition. Wayne has spent more than three decades at the University of Adelaide working across animal breeding, genetics and livestock production, and is currently Director of the Davies Livestock...
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Lifetime Ewe Management, leadership and the legacy that changed sheep farming, with Mark, Darren and Andrew [PODCASTHON]
This week on the podcast, Mark (Ferg) catches up with Andrew Kennedy (Ox) and Darren Gordon (Cat) to reflect on their early years together as well as the career and influence of Dr Andrew “Thommo” Thompson. The episode is part of Podcasthon, supporting efforts to raise awareness for brain cancer...
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Using Genomics to Improve Heifer Selection in Commercial Beef Herds
Choosing replacement heifers shapes the productivity of a breeding herd for years to come. This week on the Head Shepherd podcast, James Starling joins Mark Ferguson to discuss the 'Optimised Heifer Selection' project, which focuses on combining genomic tools with visual assessment to improve...
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Understanding the wool industry pipeline with Shannon Donoghue
This week on the podcast, Shannon Donoghue joins us to talk about why she's so passionate about telling the story of wool. Growing up on a sheep property in South Australia, Shannon started off in the industry as a wool classer before stepping into her current role as an industry relations…
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40 years of sheep selection lessons: worm resistance, longevity and performance with Allan Richardson
How much do you hate daggy sheep? Well, what started as a frustration with daggy sheep ended up reshaping this week's guest’s entire farming system. This week, Allan Richardson explains how his determination to eliminate daggy sheep ultimately led to three decades of organic farming and the...
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Ferg’s thoughts on the 25/26 ram sale season, how to buy a good ram and why breeding values matter.
Tune in this week on the Head Shepherd podcast to hear Ferg discuss the 2025/2026 ram sale period across Australia and New Zealand. He explains his approach to selecting the right ram team and the decisions breeders have been facing when producing rams for sale in an increasingly data-driven...
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Why you can't miss LambEx26 with Jamie Heinrich
Are you heading to LambEx26? This week on the podcast we have LambEx chair, Jamie Heinrich, on the podcast to discuss one of the sheep industry’s largest gatherings, bringing together producers, researchers, service providers and supply chain leaders from around the world. Held at the Adelaide...
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Leading The New Zealand Merino Company into its next chapter with Angus Street
Our guest this week, Angus Street, has worked across journalism, global agricultural marketing, Asian supply chains and livestock trading before stepping into the role of CEO at New Zealand Merino. In this episode, Angus reflects on taking on the role and guiding the organisation through a period...
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Breeding Romneys for the rain at Kaituna Ridges
How do you breed sheep that thrive in wet coastal hill country without routine drenching? What traits actually matter when you're selecting for challenging conditions? This week on the podcast, Mark is chatting to Fred Gane, who runs Kaituna Ridges, an 800-hectare farm near Havelock and the…
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Lessons from moving sheep genetics around the world with Ian McDougall
Ever wondered about farming New Zealand sheep in the UK, or considered farming UK shedding genetics in Australia? In this episode of Head Shepherd, Ferg speaks with Ian McDougall, a veterinarian whose career - and sheep - have taken him across Australia, New Zealand and the UK. Ian grew up on...
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How innovation is changing the wool industry with Sam Wan
Growing up in Western Sydney with no connection to agriculture, Samantha Wan’s path into the wool industry was anything but typical. In this week's episode, Sam talks with Ferg about finding agriculture through high school ag, building confidence without a family farming background, and the role...
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Practical breeding strategies for commercial cattle producers with Carel Teseling
How can commercial producers use breeding values without recording full pedigrees? This week, Mark chats with Carel Teseling, Chief Operating Officer at Angus Australia, to find out. Carel's career has taken him from South Africa's regional performance recording programs to 14 years of developing...
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Ferg's thoughts on genetic gain
Ferg shares his thoughts on genetic gain in the sheep and beef industries. He has often said that we should be seeking to achieve a minimum of 2% genetic gain, but the top operators we deal with here at neXtgen Agri are consistently achieving 3-4%. Ferg explains how they’ve achieved that with the...
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Selecting for worm resistance in low-challenge systems with Swabtec
What if measuring worm resistance didn't require high parasite burdens and ALSO delivered double the heritability of egg counts? Sarah Preston, Lecturer at Federation University and cofounder of Swabtec, explains the development of their saliva-based test designed to measure immune responses to...
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Individual ewe performance and the future of sheep productivity with Tara Dwyer
What limits ewe productivity in current sheep systems? Our guest this week, Tara Dwyer, is the breeding manager at Headwaters Genetics and a farm manager within the Lone Star Farms group. Her work covers stud breeding, commercial supply chains, and large-scale sheep systems. And, in amongst all…
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Results from the 'Genetics of foot health in Merinos' project with Gus Rose
Gus Rose shares the recent results from the 'Genetics of foot health in Merinos' project, which is looking at footrot and foot structure in sheep in Australia. Gus shares what the data shows on the heritability of foot shape and its relationship with footrot, as well as other foot structure…
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Proactive sheep management strategies with Tim Gole
On this week's episode, Tim Gole shares how sheep farmers can increase their profits by shifting from responding to problems to preventing them in the first place. Tim runs ForFlocksSake, a vet-based sheep consultancy company. After a lightbulb moment during the drought, Tim became a…
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How Do You Breed Short-Tailed Sheep? with Marnie Hodge
What do the genetics of tail length and the genetics of semen quality have in common? Not much, except that our guest, Marnie Hodge, Sheep Genetics Senior Development Officer, has researched them both. Tail length is moderately to highly heritable, but in her research, Marnie found that measuring...
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Growing More Grass and Turning It Into Growth with Bevan Ravenhill
How simple rotations and tight feed management lift whole farm performance. Mark chats with Bevan Ravenhill, WA General Manager for Lawson Angus WA, to talk about what really drives a productive grazing business. Bevan grew up on a dairy farm, and that early training in grass, rotation, and...
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How to Start a Cattle Business with Summit Livestock
Ever wondered what it takes to build a succesfull seedstock buisness from the ground up? Well, this is the podcast for you. This week, Mark chats with Jasmine and Hayden Green, owners of Summit Livestock, about how they built their Angus and Limousin seedstock business from the ground up (and the...
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Financial skills for more profitable farming with David Egerton-Warburton
Accounting may not be every farmer’s favourite topic, but it is one of the most powerful tools on the farm. This week’s Head Shepherd guest, David Egerton-Warburton, explains why. Raised on a sixth-generation farm in Kojonup, Western Australia, David learned early that every on-farm decision ties...
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ABOUT THIS 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.
HOSTED BY
Mark Ferguson
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Frequently Asked Questions
How many episodes does Head Shepherd have?
Head Shepherd currently has 308 episodes available on PodParley. New episodes are automatically indexed when they're published to the podcast feed.
What is Head Shepherd about?
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.
How often does Head Shepherd release new episodes?
Head Shepherd publishes regularly with 308 episodes available. Check the episode list for the typical release schedule.
Where can I listen to Head Shepherd?
You can listen to Head Shepherd on PodParley by clicking any episode. We provide an embedded audio player for direct listening, and you can also subscribe via your preferred podcast app using the RSS feed.
Who hosts Head Shepherd?
Head Shepherd is created and hosted by Mark Ferguson.
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