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Table 2 The mean percentage of animals within-herds that exhibited evidence of liver fluke infection

From: Liver fluke (Fasciola hepatica) infection in cattle in Northern Ireland: a large-scale epidemiological investigation utilising surveillance data

  2011 2012 2013 Mean
Mean within-herd % 24.60 % 21.38 % 23.55 % 23.18 %
Std. Dev. 0.281 0.270 0.274 0.276
Total herds 13,907 13,655 12,435 13,332