Fig. 4From: Evaluation of farm-level parameters derived from animal movements for use in risk-based surveillance programmes of cattle in SwitzerlandProbability density functions of the farm level criteria considered (IDy, ICCmax, NS, avAN, AW). Data from 2012 in Switzerland is presented. The applied thresholds are shown as vertical lines: skyblue: 50Â % quantile; green: 90Â % quantile; red: 95Â % quantile; grey: 99Â % quantileBack to article page