Antibiotic use in pig production has significant welfare implications — both for animals treated with antibiotics and for those who may face treatment failure from resistant pathogens.
Antibiotic use in pig production connects to welfare in two directions: individual animals benefit from effective antibiotic treatment when ill, but overuse drives resistance that undermines future treatment efficacy for both animals and humans. The welfare link runs deeper: farms that use high volumes of antibiotics typically do so because their management conditions create disease pressure — crowded, barren, stressful environments that compromise pig immunity. Higher welfare farms consistently show lower antibiotic use, not because welfare-focused farmers use fewer antibiotics, but because better welfare conditions produce healthier animals that require less treatment. This creates a coherent argument that improving pig welfare reduces antibiotic use, with benefits for both pig health and human medicine.