Fig. 3

Seasonal patterns in antimicrobial prescriptions by antimicrobial class in the Danish mink production (2007–2016). a The graph is a monthly average from the time period 2007–2016, and illustrates the seasonal pattern in antimicrobial consumption. DADD defined animal daily dose is the assumed average maintenance dose needed to treat one kg animal. b The graph is a monthly average from the time period 2007–2016, and illustrates the seasonal pattern in antimicrobial consumption relative to the size of Danish mink production (monthly average, 2007–2016). DADD/(1000 kg – biomass * day) = number of DADD’s used within a given period per tonnes live biomass multiplied by number of days at risk within the time period (month), the unit describes the prescribed antimicrobials relative to the biomass on the farm, i.e. the decrease during autumn as the kits grow and the biomass increases. Others: Pleuromutilins, amphenicols, aminoglycosides, cephalosporins, colistin, fluoroquinolones, penicillin. TMP + sulpha: trimethoprim with sulphonamide