| Variable | Period I1 | Period II1 | Total period | |||
| Treatments2 | Treatments2 | Treatments2 | ||||
| TMR_100 | PMR_75 | TMR_100 | P + C | CS | GSS | |
| Milk income ($∙cow−1∙day−1)3 | 404.4 | 387.6 | 345.6 | 333.6 | 376.4 | 361.9 |
| Ration costs ($∙cow−1∙day−1)4 | 173.6 | 148.8 | 143.3 | 102.9 | 159.2 | 127.0 |
| Supply costs ($∙cow−1∙day−1)5 | 31.7 | 23.7 | 31.7 | 0.0 | 31.7 | 12.4 |
| Income over feeding costs (%) | 49.2 | 55.5 | 49.4 | 69.2 | 49.3 | 61.5 |
| Free milk liters over feeding costs | 16.6 | 17.9 | 14.2 | 19.2 | 15.5 | 18.5 |