| Table 4. Twelve-month pasture and forage costs for the 4.0-month deferred 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 |
76 | 92 |
30 | |
| Herbage Wt | lb/ac |
270 |
2192 | 1649 |
1649 | ||
| Forage Wt | lb/ac |
135 |
1600 |
1500 |
548 | 412 |
412 |
| Forage DM/AU | lb/d |
24 |
24 |
30 |
30 | 30 |
30 |
| Production Cost | $/ac | 2.00 | 28.11 | 37.50 | 8.76 | 8.76 | 8.76 |
| Forage DM Cost | $/ton | 29.63 | 34.80 | 50.00
| 31.97 | 42.52 | 42.52 |
| Land Area/Mo | ac | 6.63 | 0.45 | 0.60 | 1.67 | 2.22 | 2.22 |
| Land Area/PP | ac | 7.10 | 1.35 | 0.90 | 4.16 | 6.70 | 2.18 |
| Land Cost/Mo | $/mo | 13.26 | 6.40 | 14.63 | 19.53 | 19.53 | |
| Land Cost/PP | $/pp | 14.20 | 19.20 | 36.44 | 58.26 | 19.53 | |
| Forage Cost/D | $/d | 0.44 | 0.52 | 0.75 | 0.48 | 0.63 | 0.65 |
| Forage Cost/Mo | $/mo | 13.26 | 15.60 | 22.50 | 14.40 | 19.45 | 19.53 |
| Forage Cost/PP | $/pp | 14.20 | 46.80 | 33.75 | 36.44 | 58.26 | 19.53 |
| Crude Protein | % | 6.4 | |||||
| Crude Protein | lb/ac |
102 | |||||
| Cost CP | $/lb | 0.28 | |||||
| Cow CP/D | lb/d | 1.49 | 1.87 | 2.73 | 2.51 | 2.51 | 2.51 |
| Supplementation | |||||||
| Roughage/D | lb/d | ||||||
| CP/D | lb/d | 0.33 | |||||
| Sup. Cost/PP | $/pp | 8.91 | 2.25 | ||||
| Total Feed Cost | $/pp | 14.20 | 55.71 | 36.00 | 36.44 | 58.26 | 19.53 |
| Cost/D | $/d | 0.44 | 0.62 | 0.80 | 0.48 | 0.63 | 0.65 |