Biosecurity - Prevention of Avian Influenza Infection

Basic management practices such as limited controlled site access, bird proof housing, clear segregation from domestic and wild waterfowl, separate footwear and equipment for each site/house, and footbaths at the entrance to sites/houses all minimize the risk of introducing the avian influenza virus. Hygienic measures are aimed at minimizing infection pressure.

• Dry clean - removal and disposal of all organic material from the site (in the case of earthen floors this should include removing the top 4-5 cm of soil.
• Wet clean - clearing poultry houses using water at high pressure (35-55 Bar) to ensure removal of all organic material. It is advisable to add detergents to assist the cleaning process.
• Disinfection - application of a suitable disinfectant to reduce infectivity of any remaining virus particles. Applying disinfectants at the correct concentration with a suitable contact time is critical.

The downtime between successive flocks must be maximized (a minimum of 10 days is recommended).

In case of an Avian Influenza outbreak no poultry should be re-introduced into the affected area/site until a period of at least 21 days has elapsed after the confirmation of the last AI case and the completion of a stamping-out policy and disinfection procedures.

More Information
Du Pont Animal Health Solutions - Biosecurity and disinfection procedures in poultry.