AgriZeroNZ Invests in Low Methane Sheep Research to Boost Farmer Uptake
A move to boost farmer uptake of low methane emitting sheep is underway.
Rob Hewett has been appointed the new chair of AgriZeroNZ, the public-private partnership designed to accelerate the development of tools to help Kiwi farmers reduce emissions.
The appointment follows the departure of Sir Brian Roche who steered the joint venture (JV) through its establishment phase.
Roche left the JV in November to take up the role of Public Service Commissioner.
Hewett is a sixth-generation farmer with a 1050ha sheep, beef, wind and forestry operation in South Otago, and holds multiple governance roles across agriculture, horticulture, exporting and energy sectors.
Currently, he chairs Silver Fern Farms, Farmlands, Woolworks, Hilton Haulage, Pioneer Energy, Fern Energy and Rewiring Aotearoa. He is also a director on T&G Global.
Hewett was endorsed for the AgriZeroNZ role by its investor partners (The a2 Milk Company, ANZ, ANZCO Foods, ASB, BNZ, Fonterra, Rabobank, Ravensdown, Silver Fern Farms, Synlait and MPI) and ratified by Cabinet given the Crown’s 50 per cent shareholding.
He says he is excited to join the JV and foster its focus on helping New Zealand farmers meet the global demand for emissions reduction.
“AgriZeroNZ is a fantastic example of how a group of disparate companies can come together with the government to solve a problem common for all New Zealand agriculture,” says Hewett.
“AgriZeroNZ’s work is not only fundamentally important for our collective future licence to operate among discerning global customers, it’s also personal for me as our family’s farming future will in large part be determined by the success of these activities,” he says.
AgriZeroNZ director, Fraser Whineray says the board and team are pleased to welcome Hewett.
“It’s important that AgriZeroNZ’s momentum and progress towards getting practical tools into the hands of New Zealand farmers at the earliest opportunity continues. Rob’s mix of extensive governance and hands-on farming experience makes him a great fit for this task.”
To date, AgriZeroNZ has committed over $46 million across a rapidly expanding portfolio of ventures, research projects and trials. This includes a methane-inhibiting bolus, vaccines, novel probiotics, feed additives and low-emissions pasture.
Zespri's sales of kiwifruit for the 2025 season have broken all past records.
Trainee orchard manager Luke St John has won the Central Otago 2026 Young Grower regional title.
James Blair, an agronomist for AS Wilcox, has won the 2026 Pukekohe Young Grower regional title.
Fifty-eight selected individuals, companies, and start-ups will exhibit their ideas and cutting-edge solutions at the 2026 Fieldays Innovation Awards, with Amazon Web Services (AWS), who joins the programme in 2026 as overall sponsor.
A rare piece of New Zealand adventure history will be on display at this year’s Fieldays, with a pair of socks worn by the late Sir Edmund Hillary to take pride of place at the Norsewear site this June.
This month's National Fieldays will again display a strong international flavour, with more exhibitors and overseas delegations in attendance.

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