Mulesing Alternatives: Protecting Merino Sheep From Flystrike Without Surgical Intervention

Mulesing is a painful surgical procedure used to prevent flystrike in Merino sheep. Effective alternatives are now available in many contexts, making mulesing increasingly difficult to justify on welfare grounds.

Key Facts

Mulesing involves surgically removing skin folds around a Merino sheep's rear to create a smooth scar resistant to flystrike
Flystrike (myiasis) occurs when blowflies lay eggs in damp skin folds and maggots cause severe tissue damage
Merino sheep have been bred for dense wool covering including around the breech area that increases flystrike risk
New Zealand banned mulesing in 2018, the first major wool-producing country to do so
Australia continues to permit mulesing but faces significant trade and industry pressure to phase it out
Breed selection for plain-bodied Merinos without extensive skin wrinkles reduces flystrike risk without mulesing
Clip and jetting programs (chemical treatment of high-risk areas) provide flystrike protection without surgery
Pain relief during mulesing is now available and increasingly required - some brands require it for sourcing

Welfare Considerations

Mulesing causes significant acute pain during the procedure and post-operative discomfort during healing. Animals that have been properly analgesia-treated show significantly reduced pain indicators compared to those treated without analgesia. The welfare justification for mulesing rests on preventing the arguably greater welfare harm of severe flystrike in susceptible sheep. This justification is becoming less compelling as effective alternatives are validated: selective breeding for plain-bodied Merinos, clip and jetting programs, and breeding programs that select for breech wrinkle reduction. New Zealand's successful ban demonstrates that Merino wool production can be maintained without mulesing when industry commits to alternative approaches.

What You Can Do

Support wool brands that require non-mulesed wool or require pain relief during mulesing as a minimum
Choose clothing and textiles certified by programs that verify non-mulesed or pain-relief-treated wool
Advocate for banning mulesing or mandatory pain relief requirements in wool-producing countries
Support breeding programs developing plain-bodied Merino genetics with reduced flystrike susceptibility
Engage fashion brands about their wool welfare sourcing policies and supplier requirements
Learn about flystrike ecology to understand the context of mulesing and the viability of alternatives