Table 5. Twelve-month nutrient requirements for 1400-pound range cows with calf birth dates in January.
Dry Gestation
3rd Trimester
Early Lactation

Lactation


Ration

Pasture

Ration

Pasture

Ration

Pasture

Ration
Spring
Pasture
Summer
Pasture
Fall
Pasture
Days90327531137
Daily Requirements in Pounds
Dry Matter
27
30
30
Energy (TDN)
14.28
17.40
16.71
Crude Protein
2.13
2.94
2.70
Calcium
0.07
0.08
0.08
Phosphorus
0.05
0.06
0.05
Production Period Requirements in Pounds
Dry Matter
2430
960
2250
930
4110
Energy (TDN)
1285.20
556.80
1253.25
518.01
2289.27
Crude Protein
191.70
94.08
202.50
83.70
369.90
Calcium
6.30
2.56
6.00
2.48
10.96
Phosphorus
4.50
1.92
3.75
1.55
6.85
12-Month Requirements in Pounds

Totals for
Rations

Totals for
Pastures

Totals for
12 Months

Dry Matter
5640
5040
10680
Energy (TDN)
3095.25
2807.28
5902.53
Crude Protein
488.28
453.60
941.88
Calcium
14.86
13.44
28.30
Phosphorus
10.17
8.40
18.57