Farm Animals

Cattle Liver Abscess and Feedlot Welfare

Liver abscesses in feedlot cattle: causes, welfare implications, and prevention strategies.

Key Facts

Liver abscesses affect up to 30% of feedlot cattle at slaughter in some surveys
High grain diets cause rumenitis which allows bacteria to reach the liver
Tylosin in feed reduces liver abscess prevalence but raises antibiotic stewardship concerns
Gradual diet transition and fibre inclusion reduce rumenitis and liver abscess risk
Liver abscesses cause chronic pain and immune compromise in affected animals

Welfare Considerations

Liver abscesses cause chronic suffering that is invisible during the animal's life, and nutritional management to prevent rumenitis is a welfare priority in feedlot systems.

What You Can Do

Advocate for dietary management standards that reduce liver abscess prevalence
Support research into non-antibiotic liver abscess prevention strategies
Choose beef from supply chains committed to feedlot welfare and liver abscess monitoring