Table 11. Twelve-month nutrient requirements for 1400-pound range cows with calf birth dates in March.
Dry Gestation
3rd Trimester
Early Lactation

Lactation


Ration

Pasture

Ration

Pasture

Ration

Pasture

Ration
Spring
Pasture
Summer
Pasture
Fall
Pasture
Days32904531137

30

Daily Requirements in Pounds
Dry Matter
27
27
30
30
Energy (TDN)
12.42
14.28
17.40
16.71
Crude Protein
1.67
2.13
2.94
2.70
Calcium
0.04
0.07
0.08
0.08
Phosphorus
0.03
0.05
0.06
0.05
Production Period Requirements in Pounds
Dry Matter

864

2430
1350
930
4110
900
Energy (TDN)
397.44
1285.20
783.00
518.01
2289.27
501.30
Crude Protein
53.44
191.70
132.30
83.70
369.90
81.00
Calcium
1.28
6.30
3.60
2.48
10.96
2.40
Phosphorus
0.96
4.50
2.70
1.55
6.85
1.50
12-Month Requirements in Pounds

Totals for
Rations

Totals for
Pastures

Totals for
12 Months

Dry Matter3780680410584
Energy (TDN)2068.203706.025774.22
Crude Protein324.00588.04912.04
Calcium9.9017.1227.02
Phosphorus7.2010.8618.06