MPI defends cost of new biosecurity lab
The head of the Ministry for Primary Industries (MPI) biosecurity operation, Stuart Anderson, has defended the cost and the need for a Plant Healht and Environment Laboratory (PHEL) being built in Auckland.
Biosecurity New Zealand has reported no signs of disease on other chicken farms operated by Mainland Poultry in Otago, however testing and monitoring work continues.
Approximately 1,000 samples have been received for testing at the Ministry for Primary Industries (MPI) laboratory in Wallaceville, Wellington, and the lab is prioritising analysis based on assessed risk.
Biosecurity New Zealand deputy director-general Stuart Anderson says the first batch of results and ongoing monitoring at Mainland Poultry’s properties with links to the Hillgrove site where infection was first reported show no signs of new disease at this stage.
Anderson says this is promising.
“However, we are continuing rigorous testing as the disease has an incubation period,” he says.
“There have been no signs of production loss or ill birds at Mainland Poultry’s five other properties to date, and we will keep monitoring closely.”
Anderson says samples from a smaller free-range chicken farm near Dunedin are being closely analysed, with test results expected soon.
“We acted swiftly on Tuesday, issuing a precautionary restricted place notice for the property after some of its estimated 6,000 birds died,” he says. “Those restrictions stopped the movement of material on and off the farm.”
He says that testing is standard procedure in biosecurity responses where illness is identified.
“We acknowledge this is an extremely difficult time for the affected farmers, through no fault of their own, and we are working to support them.”
Work continues today to cull chickens from the two infected sheds on the Hillgrove property.
“We are working at a steady pace and the depopulation is progressing well. Two trucks transporting carcasses, eggs and litter from the affected sheds, left the property yesterday afternoon,” Anderson says.
Rigorous testing will continue over the coming days and weeks and Anderson says Biosecurity New Zealand will take action as required.
The incubation period for avian influenza is typically three to 14 days, with a possibility of up to 21 days, so testing will continue over the next two to three weeks, he says.
Biosecurity New Zealand has increased its presence on the ground in Otago and a regional control centre has been set up to manage the situation.
Arable growers worried that some weeds in their crops may have developed herbicide resistance can now get the suspected plants tested for free.
Fruit growers and exporters are worried following the discovery of a male Queensland fruit fly in Auckland this week.
Dairy prices have jumped in the overnight Global Dairy Trade (GDT) auction, breaking a five-month negative streak.
Alliance Group chief executive Willie Wiese is leaving the company after three years in the role.
A booklet produced in 2025 by the Rotoiti 15 trust, Department of Conservation and Scion – now part of the Bioeconomy Science Institute – aims to help people identify insect pests and diseases.
A Taranaki farmer and livestock agent who illegally swapped NAIT tags from cows infected with a bovine disease in an attempt to sell the cows has been fined $15,000.

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