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Oedema Disease in Pigs: Post-Weaning Welfare Challenge

Oedema disease causes sudden death and neurological signs in recently weaned pigs. This guide covers welfare and prevention.

Key Facts

Oedema disease is caused by verotoxin-producing E. coli (VTEC)
It typically affects the heaviest, best-growing pigs 1-2 weeks after weaning
Signs include sudden death, wobbliness, facial swelling, and neurological signs
The toxin causes fluid accumulation in body cavities and nervous tissue
Vaccination against specific VTEC strains prevents most cases
Dietary management reducing protein and density at weaning lowers risk

Welfare Considerations and Management

Welfare-centred management of oedema disease focuses on prevention as treatment is often unsuccessful. Vaccination against E. coli F18 VTEC is effective where available. Reducing dietary protein and energy density at weaning limits the explosive E. coli proliferation triggering toxin production. Zinc oxide (where permitted) and organic acids in feed reduce gut colonisation. Early recognition and veterinary intervention improves outcomes in mild cases.

What You Can Do

Vaccinate sows and piglets against E. coli VTEC strains causing oedema disease
Reduce dietary protein and energy density at weaning to lower VTEC risk
Monitor post-weaning pigs closely for neurological signs and sudden deaths
Seek veterinary advice on preventive management strategy for affected farms