Sampling period 1 | Sampling period 2 | Sampling period 3 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Spring 2014 | Winter 2014 | Winter 2015 | |||||||||||
Whole herd | Seronegative animals | Youngstock | Youngstock | ||||||||||
Herd ID | Herd size | No. of positives | Herd TP (%) | Cows TP (%) | Heifers TP (%) | Sample size | No. of positives | Cows positive | Heifers positive | Herd size | No. of positives | Sample size | No. of positives |
1 | 148 | 101 | 69.9 | 99.5 | 2.3 | Farmer opted out of study | |||||||
2 | 390 | 198 | 52 | 72.2 | 0 | 86 | 1 | 0 | 1 | 99 | 0 | 94 | 0 |
3 | 180 | 15 | 8.5 | 10.7 | 2.2 | 75 | 0 | 0 | 0 | 30 | 0 | 29 | 0 |
4 | 196 | 138 | 72.1 | 96.2 | 0 | 30 | 1 | 0 | 1 | 44 | 1 | 43 | 0 |
5 | 117 | 85 | 74.4 | 94.7 | 0 | 16 | 1 | 1 | 0 | 20 | 0 | 20 | 0 |
6 | 106 | 79 | 76.4 | 92 | 0 | 9 | 1 | 0 | 1 | 75 | 0 | 66 | 0 |
7 | 284 | 166 | 59.9 | 71.2 | 0 | 55 | 3 | 2 | 1 | 28 | 0 | 28 | 0 |
8 | 169 | 119 | 72.1 | 91.7 | 0 | 14 | 0 | 0 | 0 | 33 | 0 | 32 | 0 |
9 | 73 | 58 | 81.4 | 100 | 0 | 8 | 0 | 0 | 0 | 20 | 0 | 20 | 0 |
10 | 241 | 27 | 11.5 | 16.2 | 0 | 87 | 0 | 0 | 0 | 79 | 0 | 77 | 0 |
11 | 142 | 59 | 42.6 | 63 | 0 | 36 | 0 | 0 | 0 | 39 | 0 | 23 | 0 |
12 | 379 | 261 | 70.6 | 95.8 | 1 | 52 | 2 | 2 | 0 | 106 | 0 | 105 | 0 |
13 | 338 | 232 | 70.3 | 99.9 | 1 | 53 | 1 | 0 | 1 | 106 | 1 | 106 | 0 |
14 | 123 | 88 | 73.3 | 100 | 0 | 18 | 1 | 1 | 0 | 36 | 0 | 35 | 0 |
15 | 283 | 180 | 77.5 | 99.2 | 0 | 43 | 0 | 0 | 0 | 84 | 1 | 81 | 0 |
16 | 561 | 435 | 79.4 | 100 | 0 | 55 | 2 | 2 | 0 | 118 | 1 | 115 | 0 |
17 | 338 | 209 | 63.4 | 96.5 | 0 | 50 | 1 | 1 | 0 | 77 | 1 | 76 | 0 |
18 | 217 | 143 | 67.5 | 90.4 | 0 | 34 | 0 | 0 | 0 | 81 | 1 | 62 | 0 |
19 | 206 | 169 | 84.1 | 98.9 | 0 | 17 | 0 | 0 | 0 | 50 | 0 | 49 | 0 |
20 | 163 | 94 | 59.1 | 89.1 | 1.8 | 32 | 0 | 0 | 0 | 81 | 0 | 76 | 0 |
21 | 89 | 65 | 74.8 | 95 | 5.1 | 6 | 0 | 0 | 0 | 34 | 0 | 9 | 0 |
22 | 212 | 117 | 56.5 | 77.5 | 3.4 | 50 | 1 | 1 | 0 | 66 | 1 | 65 | 0 |
23 | 106 | 66 | 63.8 | 96.6 | 0 | 19 | 0 | 0 | 0 | 44 | 0 | 41 | 0 |
24 | 218 | 154 | 72.4 | 99.9 | 0 | 27 | 0 | 0 | 0 | 115 | 0 | 114 | 0 |
25 | 113 | 26 | 23.6 | 30.6 | 0 | 37 | 0 | 0 | 0 | 35 | 0 | 30 | 0 |
26 | 139 | 91 | 67.1 | 100 | 2.1 | 24 | 0 | 0 | 0 | 50 | 0 | 44 | 0 |
Total | 5531 | 3375 | 62.5 | 84.7 | 0.6 | 933 | 15 | 10 | 5 | 1550 | 7 | 1440 | 0 |