Liver Fluke in Cattle: Welfare Management

Key Welfare Considerations

• Fasciola hepatica causes acute, subacute, and chronic liver welfare disease in cattle.
• Acute fluke from massive infection causes sudden welfare deaths in cattle on heavily contaminated pastures.
• Chronic fluke causes welfare production losses through weight loss, anaemia, and reduced feed conversion.
• UK cattle welfare fluke risk is highest in wet regions — Scotland, Wales, and southwest England are endemic areas.
• Galba truncatula snail habitat on waterlogged, rush-infested pastures identifies welfare high-risk areas.
• Annual NADIS weather-based welfare fluke forecasts guide strategic treatment timing.
• Triclabendazole is the only welfare treatment effective against all developmental stages including early immature flukes.
• Triclabendazole resistance is confirmed in UK cattle herds — welfare surveillance and resistance testing is important.
• Welfare rotation between triclabendazole, closantel, albendazole, and nitroxynil reduces resistance development.
• Bulk milk ELISA provides welfare herd-level surveillance for dairy herds.
• Individual animal welfare liver fluke antibody ELISA testing guides targeted individual welfare treatment.
• Liver condemnation data at slaughter provides welfare fluke burden feedback from individual farms.
• Pasture management through drainage and fencing off wet areas reduces welfare snail habitat.
• Molluscocide application to welfare high-risk areas reduces snail populations and welfare transmission.
• Integrated fluke management combining pasture welfare improvement, strategic treatment, and surveillance is most effective.