| Table 3. Twelve-month pasture and forage costs for the 4.5-month seasonlong management strategy. | |||||||
| Dry Gestation | Third Trimester | Early Lactation | Lactation | Lactation |
Lactation | ||
| Season | Late Fall | Winter | Early Spring | Spring |
Summer | Early
Late Fall | |
| Days |
32 |
90 |
45 |
31 |
137 |
30 | |
| Herbage Wt | lb/ac |
1980 |
1280 |
270 | |||
| Forage Wt | lb/ac |
1600 |
1600 |
1500 |
495 |
320 |
135 |
| Forage DM/AU | lb/d |
24 |
24 |
30 |
30 |
30 |
30 |
| Production Cost | $/ac | 28.11 | 28.11 | 37.50 | 8.76 | 8.76 | 2.00 |
| Forage DM Cost | $/ton | 34.80
| 34.80 | 50.00
| 35.39 | 54.75 | 29.63 |
| Land Area/Mo | ac | 0.44 | 0.45 | 0.60 | 1.82 | 2.86 | 6.63 |
| Land Area/PP | ac | 0.47 | 1.35 | 0.90 | 1.88 | 12.70 | 6.63 |
| Land Cost/Mo | $/mo | 6.26 | 6.40 | 15.94 | 25.05 | 13.26 | |
| Land Cost/PP | $/pp | 6.68
| 19.20 | 16.47 | 111.25 | 13.26 | |
| Forage Cost/D | $/d | 0.41 | 0.52
| 0.75 | 0.52 | 0.81 | 0.44 |
| Forage Cost/Mo | $/mo | 12.32 | 15.60 | 22.50 | 15.60 | 24.30 | 13.26 |
| Forage Cost/PP | $/pp | 13.12 | 46.80 | 33.75 | 16.47 | 111.25 | 13.26 |
| Crude Protein | % | 6.4 | 6.4 | ||||
| Crude Protein | lb/ac |
102 |
102 | ||||
| Cost CP | $/lb | 0.28 | 0.28 | ||||
| Cow CP/D | lb/d | 1.49
| 1.87 | 2.73 | 2.51 | 2.51 | 2.51 |
| Supplementation | |||||||
| Roughage/D | lb/d | 0.6 | |||||
| CP/D | lb/d | 0.33 | |||||
| Sup. Cost/PP | $/pp | 0.34 | 8.91 | 2.25 | |||
| Total Feed Cost | $/pp | 13.46 | 55.71 | 36.00 | 16.47 | 111.25 | 13.26 |
| Cost/D | $/d | 0.42 | 0.62 | 0.80 | 0.52 | 0.81 | 0.44 |