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Table 1 Study Farm Details

From: Comparison of bulk milk antibody and youngstock serology screens for determining herd status for Bovine Viral Diarrhoea Virus

Farm ID Dairy/Beef Vaccinating over study period? Suspicion of active infection following initial screen?^ Was whole herd testing performed? PIs present at WHT Total number of PIs identified Time between initial herd screen and WHT (Months) Age range of random sample (Months) Herd size at recruitment
1 Dairy Y* Y Y 2 3 11 9–12 349
2 Dairy N Y Y 0 12 7 9–12 542
3 Dairy Y* N Y 0 0 10 9–12 450
5 Dairy Y* Y Y 2 2 7 9–12 527
6 Beef Y* N N - 0 - - 61
7 Dairy Y* Y Y 0 0 9 9–12 381
8 Dairy Y* Y Y 0 0 3 11.5–13 381
11 Dairy Y* N N - 0 - - 217
13 Dairy N N N - 0 - - 201
15 Dairy Y* N Y 1 1 9 7.7–12 633
17 Beef Y* N N - 0 - - 180
18 Dairy Y* Y Y 4 6 9 10–12.6 307
19 Dairy N Y Y 1 1 5 9–12 214
20 Dairy Y* Y Y 3 3 4 9–12 309
21 Beef N N N - 0 - - 54
24 Dairy N N N - 0 - - 286
25 Dairy Y* N Y 0 0 9 9.3–13.5 300
26 Dairy Y* Y Y 2 3 5 8.5–12.3 170
27 Dairy Y* N Y 1 1 11 9–12 192
28 Dairy Y+ Y Y 0 0 12 9–12 335
29 Dairy Y+ Y Y 0 0 12 8–11 412
30 Dairy Y+ N N - 0 - - 360
37 Dairy Y+ Y Y 3 5 2 10.1–12.3 402
38 Dairy Y+ Y Y 2 2 3 8.3–10.9 542
39 Dairy N N Y 0 0 19 9–12 143
40 Dairy Y* Y Y 5 9 1 9–12 230
     Mean    8   315
     Max    19   633
     Min    1   54
  1. Details of the farms analysed in this manuscript: Farm type, vaccination status (* vaccinating using Pregsure BVD and + vaccinating using Bovilis BVD), Suspicion of active infection upon initial screening (^ according to the cautious initial interpretation), Total number of PIs identified during the study, Whether a whole herd test was performed, Total number of PIs identified at the WHT (where performed), The delay between initial screening and WHT if conducted, Age range of animals selected for the random screening at the WHT and herd size at recruitment. Farm numbers can be cross referenced with Booth and Brownlie 2012 [32] and Booth et al. 2013 [33]