Table 12. Twelve-month nutrient requirements for 1000-pound range cows with calf birth dates in April.
Dry Gestation
3rd Trimester
Early Lactation

Lactation


Ration

Pasture

Ration

Pasture

Ration

Pasture

Ration
Spring
Pasture
Summer
Pasture
Fall
Pasture
Days6290151516137

30

Daily Requirements in Pounds
Dry Matter

21

21
24
24
Energy (TDN)
9.64
10.98
14.30
13.73
Crude Protein
1.30
1.64
2.52
2.30
Calcium
0.03
0.05
0.07
0.06
Phosphorus
0.02
0.03
0.05
0.04
Production Period Requirements in Pounds
Dry Matter
1302
1890
360
360
384
3288

720

Energy (TDN)
597.68
988.20
214.50
214.50
219.68
1881.01
411.90
Crude Protein
80.60
147.60
37.50
37.50
36.80
315.10
69.00
Calcium
1.86
4.50
1.05
1.05
0.96
8.22
1.80
Phosphorus
1.24
2.70
0.75
0.75
0.64
5.48
1.20
12-Month Requirements in Pounds

Totals for
Rations

Totals for
Pastures

Totals for
12 Months

Dry Matter355247528304
Energy (TDN)1800.382727.094527.47
Crude Protein265.70458.40724.10
Calcium7.4112.0319.44
Phosphorus4.698.0712.76