Figure 4

Results concerning the risk indices for the historical and optimized way of creating batches. A Difference between the risk indices with the optimized batch composition and those with the historical batch composition, as a function of the difference in number of origins, with the proportion of data points in each quadrant. B Distribution of the risk indices for the historical (orange) and optimized batch compositions (purple), with the mean value of the two distributions (vertical dotted line). C, D Average proportion of calves expected to develop BRD \(p^{\prime}_{s,p}\) (C) and the relative change in the number of calves developing symptoms (D) as a function of the observed proportion of calves currently developing symptoms \(p\) (solid line), with envelops including 50% (dark grey) and 90% (light gray) of the 10,000 sanitary situations.