Breech modification alternatives to mulesing sheep are being developed, but the cattle equivalent challenge — preventing fly strike in tropical beef cattle — also requires welfare attention.
Cattle ectoparasite welfare in tropical production mirrors sheep fly strike concerns but receives less advocacy attention. Buffalo flies and horn flies cause blood loss, skin irritation, wound formation, and behavioral disruption in affected cattle. Ear wounds from fly feeding are painful and can become fly-strike sites. Chemical treatment reduces burden but involves organophosphate or pyrethroid exposure with their own welfare and environmental costs. Resistance breeding through tick and fly resistant genetics reduces chemical treatment frequency while maintaining welfare through lower parasite burden. Integrated pest management that combines genetic resistance, monitoring thresholds, and targeted treatment represents the highest welfare approach.