Table 4.
Default values and ranges were used for the model sensitivity analysis of the economic variables under different intervention scenarios.
| Economic Parameters | Default Value | Lower and Upper Values |
|---|---|---|
| Average milk price (USD/kg) 1 | 0.308 | 0.263–0.357 |
| Reproductive cost for involuntary open days (USD/d) 2 | 4.60 | - |
| Feed cost (USD/kg of dry matter) 3 | 0.18 | - |
| Cost of the milking-machine test (USD/yr) 3 | 281.25 | 233.44–329.06 |
| Average cost of teat disinfectant solution (USD/l) 3 | 2.50 | 2.08–2.93 |
| Separate cloths (USD/yr) 3 | 620 | 514.6–725.4 |
| Average cost of dry cow antibiotic (USD/unit) 3 | 1.50 | 1.25–1.76 |
| Cost of labor (USD/h) 3 | 3.90 | 3.24–4.56 |
| Average cost of milking cow antibiotic (USD/unit) 3 | 2.00 | 1.66–2.34 |
| Replacement cost (USD/heifer) 3 | 1300 | 1079–1521 |
| Culled cow cost (USD/cow) 3 | 600 | 498–702 |
| Pen cost (USD/yr) 4 | 614 | 510–718 |
| Labor segregation cost (USD/segregated cow/yr) 4 | 109.50 | 90.89–128.12 |
1 Observatorio de la Cadena Láctea Argentina (OCLA): annual average of the last five years [48]. 2 Cabrera, 2012 [44]. For a second parity cow between the fourth to fifth month in milk. 3 Current Market Prices in Argentina. The labor time spent on proper milking procedures, dry cow therapy, and clinical mastitis treatment was 26, 300, and 75 s/cow/each application, respectively [49]. 4 Adapted from Huijps et al. [50] for segregated infected cows milked last in a herd size of 200 dairy cows.