Poultry Red Mite Infestation | Animal Welfare Hub

Red mite (Dermanyssus gallinae) is one of the most economically significant and welfare-damaging parasites in laying hen production worldwide.

Key Facts

Red mite infestations affect over 80% of laying hen flocks in Europe
Mites feed on blood at night, causing anemia, feather pecking, and reduced egg production
Severe infestations lead to stress, immune suppression, and increased disease susceptibility
Red mites can survive for months without a host, making eradication extremely difficult
Welfare-friendly control methods include hot water treatment, silica dust, and predatory mites

Welfare Considerations

Red mite infestations cause intense irritation and disturb hens during the night rest period that is essential for their welfare. Repeated blood-sucking causes progressive anemia, weight loss, and pale combs. Infested hens show increased restlessness, feather pecking, and reduced time at feeders. The persistent nature of infestations and difficulty of eradication means many hens suffer for extended periods. Integrated pest management approaches are needed for effective, welfare-conscious control.

What You Can Do

Support egg producers who invest in effective mite control programs
Choose eggs from producers with documented pest management protocols
Advocate for greater investment in research into red mite biocontrol
Report signs of neglected parasite burdens in backyard flocks to veterinary authorities