Antibiotic use in livestock affects both animal welfare through disease treatment and public health through antimicrobial resistance, requiring careful stewardship approaches.
Antibiotic stewardship creates a genuine welfare tension between responsible antimicrobial use and adequate treatment of sick animals. Restrictions on prophylactic use mean that disease prevention must come from improved husbandry, management and vaccination rather than routine medication. Animals in poorly managed systems that would previously have received prophylactic antibiotics may experience more disease under stewardship regimes unless underlying management is improved simultaneously. Welfare-focused stewardship pairs antibiotic restriction with investment in the alternative disease prevention approaches that maintain animal health without routine antibiotics.