Table 23. Range cow and calf performance on native rangeland pastures during the 137 day summer portion of the lactation production period.
Native
Rangeland
(12-m RS)*		Native
Rangeland
(6.0-m SL)		Native
Rangeland
(4.5-m SL)		Native
Rangeland
(4.5-m Def)		Native
Rangeland
(4.5-m TOR)
Length of Perioddays
137
183
137
122
137
Acres/Monthac
2.52
4.04
2.86
2.22
2.04
Acres/Period

ac
11.32
24.24
12.70
8.88
9.00
Cow ADGlbs
0.12
0.34
0.32
0.62
Cow Gain/Acrelbs
0.91
3.67
4.40
9.44
Cow Gain/Period lbs
21.96
46.58
39.04
84.94
Calf ADGlbs
1.80
1.80
2.09
1.80
2.21
Calf Gain/Acrelbs
21.78
13.59
22.55
24.73
33.64
Calf Gain/Periodlbs
246.60
329.40
286.33
219.60
302.77

 

*Based on estimated calf weight