Farm Animals

Cattle Liver Abscess and Feedlot Welfare

Liver abscesses are a common and painful welfare problem in intensively fed beef cattle, driven by high-starch diets and rumen acidosis.

Key Facts

Liver abscesses affect 10-30% of cattle in high-grain finishing systems
Rumen acidosis from high-starch diets enables Fusobacterium necrophorum to reach the liver
Abscesses cause chronic pain and systemic illness, detectable only at post-mortem in most cases
Tylosin inclusion in feed reduces abscess prevalence but raises antibiotic stewardship concerns
Increased roughage in finishing diets, transition feeding and buffers reduce acidosis risk

Welfare Considerations

Liver abscesses represent significant invisible suffering in feedlot cattle. Dietary management that reduces acidosis is both a welfare improvement and reduces antibiotic dependence.

What You Can Do

Support beef from grass-finished or lower-intensity systems with slower dietary transitions
Advocate for liver abscess prevalence as a mandatory animal health indicator in beef production
Ask retailers about the feeding systems used by their beef suppliers