Tasmanian egg producers brace for H5N1 and the risk of mass culling
Tasmanian poultry farms are tightening biosecurity after Australia's first H5N1 detections and warning that an outbreak in commercial flocks could force total depopulation.
Tasmania's poultry industry is tightening biosecurity after Australia's first confirmed detections of H5N1 in wild birds. ABC News reported that the dangerous strain was first found in a sick migratory seabird on a beach near Esperance in Western Australia, and a second bird has since tested positive. For producers on the island state, that has turned a distant global threat into an operational risk that now requires immediate preparation.
The state's biggest egg producer, Pure Foods Eggs, has already stepped up its internal controls. Chief executive Laura Manion said the Longford operation had always maintained strict biosecurity, but free-range farming creates a practical limit because interactions between domestic birds and wild birds cannot be fully eliminated. The company normally keeps around 220,000 laying hens and produces about 80,000 dozen eggs each week, so any outbreak would have consequences well beyond a single farm gate.
Manion warned that if the virus reached the business, the current response framework would mean total depopulation of birds on the affected site. That would trigger wider effects on staff, jobs and the time needed to rebuild the flock. The risk is particularly sensitive in Tasmania because a large share of the local egg sector is free range, and that production model is inherently more exposed to the surrounding environment and migratory bird pathways.
Other growers are preparing as well, even if they are trying to avoid panic. Phil Glover, who runs Mt Roland Free Range Eggs near Sheffield, said his farm is surrounded by waterways and wild ducks, making it impossible to remove the natural exposure entirely. Still, he said his birds could be locked inside if needed because feed and water are already housed indoors and the sheds can be closed quickly if the threat intensifies.
Biosecurity Tasmania says the state is well prepared and has response protocols in place, but it has also made clear that euthanasia of commercial poultry is definitely possible if an outbreak occurs. That reflects the standard containment approach for highly pathogenic avian influenza, where rapid depopulation is used to stop further spread and protect surrounding farms, transport flows and processing operations.
Since 2021, H5N1 has killed millions of chickens, ducks and wild animals worldwide, and that global experience explains the severity of the response being planned in Australia. For the farm economy, the issue is not only veterinary. It affects egg supply stability, the cost of extra protection on free-range farms and the potential employment shock if the virus reaches commercial flocks. Even two confirmed cases in wild seabirds in a remote part of the country are already changing production decisions in Tasmania's poultry sector.