Table 7. Twelve-month forage costs for early crested wheatgrass harvested-forage 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
Forage Wt lb/ac
1300
1300
1300
1300
1300
1300
Forage DM/AUlb/d
24
24
27
30
30
30
Production Cost$/ac
26.50
26.50
26.50
26.50
26.50
26.50
Forage DM Cost$/ton
40.80
40.80
40.80
40.80
40.80
40.80
Land Area/Moac
0.24
0.30
0.43
0.40
0.40
0.40
Land Area/PPac
0.26
0.89
0.65
0.41
1.82
0.40
Land Cost/Mo$/mo
3.41
4.27
6.11
5.69
5.69
5.69
Land Cost/PP$/pp
3.64
12.66
9.24
5.83
25.88
5.69
Forage Cost/D$/d
0.21
0.26
0.38
0.35
0.35
0.35
Forage Cost/Mo$/mo
6.30
7.80
11.40
10.50
10.50
10.50
Forage Cost/PP $/pp
6.72
23.40
17.10
10.85
47.95
10.50
Crude Protein%
14.5
14.5
14.5
14.5
14.5
14.5
Crude Proteinlb/ac
189
189
189
189
189
189
Cost CP$/lb
0.14
0.14
0.14
0.14
0.14
0.14
Cow CP/Dlb/d
1.49
1.87
2.73
2.51
2.51
2.51
Supplementation
Roughage/Dlb/d
13.72
11.10
8.17
12.69
12.69
12.69
CP/Dlb/d
Sup. Cost/PP$/pp
7.68
17.48
6.43
6.88
30.42
6.66
Total Feed Cost$/pp
14.40
40.88
23.53
17.73
78.37
17.16
Cost/D$/d
0.45
0.45
0.52
0.57
0.57
0.57