Fig. 3From: Prescribing and sales of intramammary antimicrobials in Ireland in 2019 and 2020: the role of milk purchasersDistribution of monthly herd SCC values among supplying herds during 2019 and 2020, by milk purchaser. Using methods as outlined in Trader Notice DH/TN/01/2018 (revised May 2018) from DAFM to milk purchasers, the monthly herd SCC value for each supplying herd is the geometric mean based on all available SCC values for that month. The percentage of supplying herds with monthly SCC values below 200,000 cells/mL is indicated. To illustrate, 56% of the monthly SCC values from herds supplying to milk purchaser A during 2019 and 2020 was below 200,000 cells/mLBack to article page