Biosecurity and Disease Prevention in Small Flocks

Good biosecurity in backyard and small poultry flocks prevents disease introduction that causes significant suffering and reduces the need for antibiotic use across the broader poultry sector.

Key Facts

Avian influenza, Marek's disease, and Newcastle disease pose serious welfare and economic threats to poultry flocks of all sizes.
Biosecurity measures including isolation of new birds, rodent control, and restriction of visitor access dramatically reduce disease risk.
The 2022 UK avian influenza outbreak led to mandatory indoor housing requirements affecting millions of backyard birds.
Vaccination against preventable diseases including Marek's is standard practice in commercial flocks and available to backyard keepers.
Wild birds are a primary route of disease introduction to domestic flocks, making netting and covered run areas important control measures.

Welfare Considerations

Disease outbreaks in poultry cause significant suffering including neurological signs, respiratory distress, and rapid mortality. They also trigger large-scale culling operations that cause welfare problems of their own. Prevention through good biosecurity is therefore a high-welfare strategy. Backyard keepers who understand disease transmission and maintain good biosecurity protect their own birds, neighbouring flocks, and the wider industry.

What You Can Do

Quarantine new birds for a minimum of 30 days before introducing them to your existing flock.
Register your flock with your national animal health authority if required by law in your country.
Cover feeding and watering areas to reduce attraction of wild birds to your poultry housing.
Vaccinate against Marek's disease and other locally relevant diseases as recommended by your vet.