Antibiotic use in livestock is a global public health concern, but the welfare dimension is equally important — overuse enables poor husbandry while underuse leaves sick animals suffering without treatment.
The relationship between antibiotic use and animal welfare is bidirectional and complex. When antibiotics are used to compensate for poor conditions — crowding, stress, inadequate hygiene — reducing their use without addressing underlying conditions can increase suffering. Conversely, overuse enables welfare-poor systems to persist by suppressing the disease signals that would otherwise require improvement. Welfare-focused antibiotic stewardship means improving conditions so fewer antibiotics are needed, maintaining access to effective treatments for genuinely sick animals, and ending the use of antibiotics as a substitute for good husbandry. Veterinary oversight is essential to ensure sick animals receive treatment while prophylactic use is curtailed.