Balancing food security and AMR

Purpose - The purpose of this paper is to focus on economics literature on antimicrobial and alternative uses in food animal production on its current state, its drivers, impacts and policy, and provides a general picture of the research for this special agricultural input and future directions for the research and policy. Design/methodology/approach - Reduction of antimicrobial uses in food animal production is relevant to both preventing antimicrobial resistance and ensuring global food security. This study focuses on reviewing antimicrobial impact on global food security, particularly in farm production by documenting the main drivers, functions and alternatives of antimicrobial animal uses, comparing different approaches used in evaluating its production effects and providing recommendations for future research and policy development. Findings - Three main approaches, controlled animal experiments, comparisons between with and without using antimicrobials at the farm level and comparisons before and after antimicrobial ban as growth promoter, have been used in measuring food security effects of antimicrobial uses in food animal production. They are, however, answering different questions with different measuring conditions. The positive production impact of antimicrobial use is often associated to its functions as a growth promoter and in preventing and treating diseases. In this review the author question the technical legitimacy for antimicrobials as a growth promoter and argue that antimicrobials should be treated as a special class of conditional and supportive input in farm production instead of using it as a normal input in its impact evaluation. Research limitations/implications - An approach of combining damage control function and disease epidemiological model instead of a simplified production function should be used in its impact evaluation including in evaluating those used as antimicrobial growth promoters. Practical implications - In reducing antimicrobial uses in animal production, apart from more active adoption of the alternatives, we call for a better understanding for the decision makings of antimicrobial use in the production process including government-veterinarian-farm links. Originality/value - This study examines the main issues in current economic research in antimicrobial food animal production, clarifies ambiguities in antimicrobial production functions and in different approaches used in impact evaluation, provides a roadmap for reduction of antimicrobial uses and a new approach for the policy evaluation.