Milk cow−1∙day−1 | Income(1) (US$ cow−1∙day−1 | Feeding cost without oils (% produced milk) | Feeding cost including oils (% produced milk) |
15 | 4.5 | 109.83 | 134.89 |
20 | 6 | 82.37 | 101.17 |
25 | 7.5 | 65.90 | 80.94 |
30 | 9 | 54.91 | 67.45 |
35 | 10.5 | 47.07 | 57.81 |