What precautionary measures can poultry farmers take against H9N2?

What is H9N2?

H9N2 is a type of avian influenza that can affect poultry flocks. In many cases it causes milder signs than other bird flu strains, but it can still reduce bird health, productivity, and welfare.

For UK poultry farmers, the main concern is not only illness in birds, but also the risk of spread within and between farms. Good prevention is therefore more effective and far less disruptive than dealing with an outbreak.

Strengthen on-farm biosecurity

Biosecurity is the first and most important line of defence. Keep poultry houses, equipment, vehicles, and footwear clean, and use site-specific hygiene routines for staff and visitors.

Limit unnecessary visitors and keep a clear record of everyone entering the site. If people must enter, they should wear clean protective clothing and follow washing or disinfecting procedures before moving between houses.

Keep wild birds away from poultry

Wild birds can carry avian influenza viruses and contaminate feed, water, and outdoor areas. Cover feed stores, secure water sources, and reduce access points where wild birds might gather near poultry.

Outdoor flocks should be managed carefully, especially during periods when avian influenza risk is higher. Netting, fencing, and good site maintenance can all help reduce contact with wild birds and their droppings.

Monitor birds closely and act early

Farmers should watch for reduced feed intake, drop in egg production, coughing, sneezing, or unusual deaths. Even mild changes in flock behaviour can be an early warning sign that should not be ignored.

If birds look unwell, seek veterinary advice promptly and follow the latest guidance from APHA and your vet. Early reporting helps protect your flock and reduces the chance of wider spread.

Manage movement, housing, and hygiene

Move birds, equipment, and litter as little as possible between units. If movement is needed, use dedicated tools for each house and clean them thoroughly after use.

Housing should be kept dry, well ventilated, and free from standing water or excess manure build-up. Regular cleaning and disinfection lower the chances of virus survival in the environment.

Prepare a flock health plan

Every poultry farm should have a written health and emergency plan. This should cover reporting procedures, isolation measures, visitor controls, and what to do if avian influenza is suspected.

Work with your vet to review the plan regularly, especially before the higher-risk autumn and winter months. Training staff so they know the signs and the correct response can make a major difference.