Sheep Mulesing: Pain, Alternatives, and Reform

Mulesing — the surgical removal of skin folds around the breech of Merino sheep — is a highly controversial practice in Australian wool production. The welfare debate has driven significant industry reform over the past two decades.

Key Facts

Mulesing involves cutting away folds of skin around the breech and tail of Merino sheep to create a smooth, wool-free area that resists flystrike
Blowfly flystrike — where flies lay eggs in moist wool folds and hatching maggots consume the sheep's flesh — is a severe and potentially fatal welfare problem
Mulesing without pain relief is standard practice on most Australian farms, causing significant acute pain during and after the procedure
Alternatives including genetic selection for plain breeching, topical treatments, and improved flystrike monitoring have all shown promise
Zara and other major fashion brands have committed to phase out mulesed wool in their supply chains
New Zealand prohibited mulesing in 2018, demonstrating commercial viability of production without the practice

Welfare Considerations

Mulesing presents a welfare dilemma: acute pain from the procedure versus the severe, potentially fatal welfare consequences of flystrike. Neither is acceptable as a welfare outcome, and the industry response has too often been to frame the choice as mulesing versus flystrike without adequately pursuing the alternatives that eliminate both harms. Pain relief during and after mulesing, genetic selection programs breeding for low flystrike susceptibility, and improved monitoring and treatment of early flystrike are all available interventions. New Zealand's prohibition demonstrates that wool production is commercially viable without mulesing. The Australian industry's continued delay in phasing out unrelieved mulesing represents a failure to act on available evidence that the welfare cost can be reduced while maintaining production viability.

What You Can Do

Choose wool products from non-mulesed sources or from mulesed-with-pain-relief certified production
Ask wool apparel brands about their mulesing policy and preference for non-mulesed or pain-relief certified suppliers
Support Australian wool producers who have transitioned to non-mulesed production and advocate for industry transition support
Engage with Choose Wisely and the Campaign for Wool to understand supply chain commitments on mulesing and flystrike prevention