Figure 2From: Insights into udder health and intramammary antibiotic usage on Irish dairy farms during 2003-2010The percentage of Irish dairy herds with a SCC result exceeding 200,000 and 400,000 cells/mL based on unadjusted SCC data from milk-recording herds, and the total number of herds milk recording, during 2003 to 2010. If more than one valid milk recordings per herd was available for any month, only the first was used.Back to article page