Table 1.
Results of the scenarios on an average-hygiene herd with a baseline true within-herd prevalence of 5.6%.
| Scenario | |||
|---|---|---|---|
| ECM (5%; 95%) | TP (5%; 95%) | AP (5%; 95%) | |
| No control | 20.12 (19.90; 20.39) | 7.02 (0.00; 18.46) | 5.91 (1.46; 13.81) |
| Three actions scenario | 20.15 (19.88; 20.40) | 2.43 (0.00; 8.29) | 2.93 (0.49; 7.32) |
| Four actions scenario | 20.17 (19.90; 20.42) | 0.00 (0.00; 0.00) | 0.99 (0.00; 2.46) |
| Remove calves | 20.13 (19.88; 20.37) | 5.91 (0.00; 15.20) | 5.37 (1.42; 12.25) |
| Handle colostrum | 20.14 (19.88; 20.41) | 5.33 (0.00; 16.02) | 4.87 (0.98; 12.68) |
| Handle waste milk | 20.13 (19.89; 20.39) | 4.87 (0.00; 12.75) | 4.41 (0.99; 10.85) |
| Cull pos. cows | 20.16 (19.91; 20.41) | 0.00 (0.00; 0.00) | 1.44 (0.00; 2.46) |
| EXP (5%; 95%) | INC (5%; 95%) | TNR (5%; 95%) | |
| No control | 5.10 (5.05; 5.16) | 8.12 (7.99; 8.25) | 3.02 (2.91; 3.12) |
| Three actions scenario | 5.21 (5.14; 5.27) | 8.13 (8.00; 8.26) | 2.92 (2.82; 3.02) |
| Four actions scenario | 5.20 (5.14; 5.26) | 8.14 (8.01; 8.27) | 2.94 (2.84; 3.03) |
| Remove calves | 5.20 (5.14; 5.26) | 8.12 (7.99; 8.25) | 2.93 (2.83; 3.02) |
| Handle colostrum | 5.14 (5.07; 5.20) | 8.13 (7.99; 8.26) | 2.99 (2.88; 3.08) |
| Handle waste milk | 5.13 (5.07; 5.20) | 8.13 (7.99; 8.26) | 2.99 (2.88; 3.09) |
| Cull pos. cows | 5.13 (5.07; 5.20) | 8.15 (8.01; 8.26) | 3.01 (2.91; 3.09) |
ECM, kilograms of ECM milk yield from of all cows on the farm; TP, true within-herd prevalence; AP, apparent within-herd prevalence; EXP, expenses in million €; INC, income in million €; TNR, total net revenue in million € over 10 years.
The numbers are median results with 5 and 95% confidence limits, calculated over the 10 simulated years. Milk yield and economic values are shown in millions. Prevalences shown in % are the resulting prevalences at the end of the simulations.