The diseases chosen have a direct or indirect impact on the production efficiency of the finishing herd.
Not seen: No animal was diagnosed with this disease in recent years or there are no signs of the disease.
Minor: The disease is present in the herd but it is under control.
Major: The disease is present in the herd with major impact on the productivity on the herd.
Include the gross percentage of animals affected with respiratory disease (e.g. coughing, sneezing, increased respiratory rate, discharges from eyes etc.) in the farm - or in alternative per batch
By clicking on each of the impact switches, the EP disease affects the chosen parameter(s) in the modeled herd. For the whole impact of EP on gross margin, all three parameters should be chosen. If no parameter is selected, the gross margin of a healthy finishing pig is calculated by the model.
In addition to the above impact parameters, three levels of EP severity can be chosen:
Mild: The disease is present in the herd but no signs or effects are noticeable on animals.
Moderate: The disease is present in the herd but it is under control with moderate signs or effects on animals.
Severe: The disease is present in the herd and has severe impact on the productivity of the herd.
The cost calculator model of EP in finishing herds estimates the relative economic risk of poor disease prevention with respect to EP in finishing herds. The model first calculates the annual gross margin (GM) of a healthy pig from a purchase/transfer age of around 84-88 days (weight at entry of around 30kg) to age of 164-168 day (days in herd of around 80 days). In the next stage, three performance indicators of the farm are affected by EP disease and the gross margin is re-calculated. Their level of severity of EP including mild, moderate and severe can be selected from the list.
The graph shows the range of the possible gross margins (dotted red line) and specifying the following three financial scenarios estimated by the model: