Flies cause significant welfare compromise in cattle during summer months, and effective integrated fly management substantially improves animal wellbeing.
Summer fly welfare impacts on cattle are often underestimated because the signs - bunching, tail swishing, head shaking, and reduced grazing - are attributed to normal summer behaviour. Heavy fly burdens cause sustained distress and significantly reduce the time cattle spend grazing and resting, directly compromising nutrition and welfare. The welfare impact compounds over weeks and months of fly season exposure. Effective fly management using appropriately timed pour-on treatments, ear tags, and environmental interventions (manure management to reduce breeding sites) substantially reduces the welfare burden and production losses associated with summer fly pressure.