Farm Animal Welfare

Cattle Liver Fluke Control and Welfare

Liver fluke (Fasciola hepatica) is a significant welfare and economic problem in cattle on wet pasture, with increasing triclabendazole resistance complicating control.

Key Facts

Liver fluke causes hepatic damage, reduced production and in severe cases, death
Acute fluke disease from massive juvenile fluke challenge can kill cattle within weeks
Resistance to triclabendazole is documented in UK cattle populations
Strategic treatment timing based on fluke forecasting reduces unnecessary treatments
Pasture management including drainage reduces snail habitat and fluke challenge

Welfare Considerations

Liver fluke causes genuine suffering - acute disease with fever, anaemia and death; chronic disease with weight loss, production loss and reduced immunity. Strategic control - using appropriate flukicides at the right time, based on risk forecasting, and rotating drug classes to manage resistance - protects cattle welfare while preserving drug efficacy for the future.

What You Can Do

Work with your vet to develop a fluke control plan based on local risk assessment
Support drainage improvements on high-risk fluke pastures
Advocate for fluke risk forecasting services as part of national herd health initiatives