Avian Influenza Culling Welfare and Alternatives

Welfare concerns in mass culling of poultry during avian influenza outbreaks and research into more humane emergency depopulation methods.

Key Facts

Millions of poultry are culled annually during avian influenza outbreaks using methods of varying humaneness
Whole-house gassing with CO2 is widely used but requires high concentrations that cause distress before unconsciousness
Water-based foam depopulation and ventilation shutdown with heat have been controversial on welfare grounds
Emergency conditions during outbreaks create pressure to depopulate rapidly, sometimes at the cost of welfare
Pre-emptive vaccination strategies in some countries reduce the frequency and scale of culling requirements

Welfare Considerations

Mass culling during avian influenza outbreaks represents an acute welfare crisis involving the deaths of billions of birds globally in recent years. The welfare of individual birds during depopulation is often compromised by the need for speed and scale. Some methods used as emergencies, including ventilation shutdown with heat addition, cause prolonged suffering that many welfare scientists consider unacceptable under any circumstances. Investment in vaccination programmes and biosecurity reduces the frequency of culling events, while investment in humane depopulation technology reduces suffering when culling is unavoidable.

What You Can Do

Advocate for governments to invest in avian influenza vaccination programmes that reduce culling frequency
Support research and development of more humane emergency depopulation methods for poultry
Engage with food companies to require welfare-conscious depopulation protocols in their supply chains
Learn about the welfare implications of different poultry production systems and avian influenza biosecurity
Donate to animal welfare organisations working on improving emergency depopulation standards globally