Farm Animal Welfare

Cattle Liver Fluke Impact on Welfare

Liver fluke (Fasciola hepatica) is a major parasitic disease of cattle causing significant welfare harm and economic losses globally.

Key Facts

Liver fluke affects cattle and sheep on wet, low-lying pastures across temperate regions
Acute fluke disease causes liver hemorrhage and can kill animals rapidly
Chronic fluke causes weight loss, anemia, submandibular edema ('bottle jaw'), and reduced productivity
Resistance to flukicides is emerging in some fluke populations
Pasture management and targeted treatment using fecal egg counts reduces reliance on routine medication

Welfare Considerations

Liver fluke causes substantial, chronic suffering in affected cattle through liver damage, anemia, and pain. Sustainable control through pasture management, strategic treatment, and resistance monitoring protects animal welfare while maintaining flukicide effectiveness.

What You Can Do

Support farms using strategic liver fluke control based on diagnostic monitoring
Advocate for liver fluke control programs in national livestock health frameworks
Choose beef and dairy from farms with documented parasite management programs