Table 10. Twelve-month nutrient requirements for 1200-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

24

24
27
27
Energy (TDN)
11.02
12.62
15.85
15.23
Crude Protein
1.49
1.87
2.73
2.51
Calcium
0.04
0.06
0.08
0.07
Phosphorus
0.03
0.04
0.05
0.05
Production Period Requirements in Pounds
Dry Matter

768

2160
1215
837
3699
810
Energy (TDN)
352.64
1135.80
713.25
472.13
2086.51
456.90
Crude Protein
47.68
168.30
122.85
77.81
343.87
75.30
Calcium
1.28
5.40
3.60
2.17
9.59
2.10
Phosphorus
0.96
3.60
2.25
1.55
6.85
1.50
12-Month Requirements in Pounds

Totals for
Rations

Totals for
Pastures

Totals for
12 Months

Dry Matter337561149489
Energy (TDN)1849.053368.185217.23
Crude Protein291.15544.66835.80
Calcium9.0015.1424.14
Phosphorus5.8510.8616.71