Mulesing — the surgical removal of skin folds around a merino sheep's breech to prevent flystrike — is a highly controversial welfare practice. Effective alternatives exist but have not yet achieved universal adoption in Australian wool production.
Mulesing presents a welfare dilemma: the procedure causes acute pain, but the condition it prevents — flystrike — causes chronic and often fatal suffering. The ethical analysis hinges on whether effective alternatives can replace mulesing. New Zealand's successful transition to plain-bodied sheep genetics demonstrates that alternatives are viable at national scale, though the transition takes years of selective breeding. In Australia, where merino wool production on a vast scale creates different economic pressures, transition has been slower. The interim welfare priority is ensuring that where mulesing continues, it is performed with appropriate anaesthesia and post-operative analgesia — a standard that many Australian producers now meet but that is not yet universal. Consumer and brand pressure has been the primary driver of welfare improvement in this sector. The long-term solution is breeding sheep that do not require mulesing — a goal that is achievable but requires sustained industry commitment.