Antimicrobial use for six farms over a 12-month period illustrated as total mg/kg, defined  daily  dose for animals as defined by the European Surveillance of Veterinary Consumption (ESVAC) group (DDDvet), as suggesetd for the UK (DDDUK) and on an individual farm level (DDDfarm), defined course dose (DCD) as defined by ESVAC (DCDvet), as suggested for the UK (DCDUK) and on an individual farm level (DCDfarm). Antimicrobial use for six farms over a 12-month period illustrated as total mg/kg, defined  daily  dose for animals as defined by the European Surveillance of Veterinary Consumption (ESVAC) group (DDDvet), as suggesetd for the UK (DDDUK) and on an individual farm level (DDDfarm), defined course dose (DCD) as defined by ESVAC (DCDvet), as suggested for the UK (DCDUK) and on an individual farm level (DCDfarm). Figures on the left show total use with the darker shading indicating the highest priority critically important antimicrobials (HP-CIAs3–5); figures on the right show HP-CIA use exclusively. Farms are coloured differently and plotted in order of their use for each metric. Harriet L Mills et al. Veterinary Record 2018;182:379 Copyright © British Veterinary Association. All rights reserved.