Livestock

Contagious Ovine Digital Dermatitis: Welfare and Biosecurity

Managing this relatively new sheep lameness cause to protect flock welfare.

Key Facts

CODD was first described in the UK in 1997 — now widespread in sheep flocks
Causes severe lameness with separation of the horn at the coronary band
Spreads rapidly through herds — biosecurity measures are critical for prevention
Responds well to appropriate antibiotic treatment — oxytetracycline spray is first-line

Welfare Considerations

CODD causes acute severe lameness — one of the most painful sheep lameness conditions. Welfare impact is significant — affected sheep cannot move freely, feed normally, or maintain welfare. Welfare-focused control identifies cases early through regular foot inspection, treats promptly with appropriate antibiotics, and implements rigorous biosecurity to prevent spread between animals. Purchased sheep are a major introduction route.

What You Can Do

Inspect feet regularly and score lameness in all sheep groups
Treat CODD cases promptly with appropriate antibiotic therapy — do not delay
Isolate purchased sheep and inspect feet before introducing them to your main flock