Table 27. Range cow and calf performance and costs and returns during the lactation production period for grazing management strategies.
12-M
Repeated
Seasonal*
6.0-M
Seasonlong
4.5-M
Seasonlong
4.0-M
Deferred
4.5-M
Twice-over
Rotation
Length of Seasondays
198
183
198
198
198
Acres/Monthac
3.19
4.04
3.27
2.01
1.72
Acres/Season

ac
20.69
24.24
21.21
13.04
11.14
Cow ADGlbs
0.12
0.30
0.55
0.93
Cow Gain/Acrelbs
0.91
2.78
8.30
16.56
Cow Gain/Season lbs
21.96
58.86
108.20
184.52
Calf ADGlbs
1.80
1.80
1.81
1.80
2.14
Calf Gain/Acrelbs
17.23
13.59
16.88
27.27
37.98
Calf Gain/Season lbs
356.40
329.40
358.11
355.64
423.12
Weight Value@$0.70/lb$
249.48
230.58
250.68
248.95
296.18
Pasture and Forage Costs$
191.69
212.34
140.98
114.23
106.79
Net Return/c-c pr$
57.79
18.24
109.70
134.72
189.39
Net Return/Acre$
2.79
0.75
5.17
10.33
17.00
Cost/lb of Calf Gain$
0.54
0.64
0.39
0.32
0.25

*Based on estimated calf weight