Antimicrobial resistance (AMR) is a major threat to global health and a key One Health challenge linking humans, animals, and the environment. Livestock are a key target for moderation of antimicrobial use (AMU), which is a major driver of AMR in these species. We reviewed both peer-reviewed studies and grey literature from government and industry reports to identify key practices associated with on-farm AMU/AMR for pigs, layer and broiler hens, beef and dairy cattle, sheep, turkeys, and farmed salmon in Europe, and to determine gaps in our collective knowledge. The full review, published in Frontiers in Antibiotics, is available with open access at https://doi.org/10.3389/frabi.2023.1209552