Livestock Feed Additives and Welfare Implications

Feed additives used to promote growth and prevent disease in livestock have complex welfare implications when used to compensate for inadequate conditions.

Key Facts

Beta-agonists such as ractopamine are added to pig and cattle feed in some countries to increase muscle mass
Ractopamine is banned in over 160 countries including the EU, China, and Russia due to welfare and food safety concerns
Ractopamine-treated pigs and cattle show increased hoof softness, locomotion difficulty, and stress behaviors
Ionophore antibiotics used in cattle feed are acutely toxic to horses and dogs — a cross-species welfare risk
Feed additive use often masks the welfare consequences of overcrowded, high-stress production environments

Welfare Considerations

Feed additives that push animals toward physiological limits compromise their comfort and resilience. Beta-agonist use in particular is associated with reduced welfare outcomes in pigs and cattle, with animals showing movement difficulty and elevated stress. The use of additives to enable production levels that would otherwise cause mortality represents a welfare concern at its foundation.

What You Can Do

Choose pork and beef products from countries that prohibit ractopamine and similar beta-agonists
Support harmonization of international food standards to require ractopamine-free production
Advocate for transparency in feed additive labeling to enable informed consumer choices