Table 9. Twelve-month nutrient requirements for 1000-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

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

672

1890
1080
744
3288
720
Energy (TDN)
308.48
988.20
643.50
425.63
1881.01
411.90
Crude Protein
41.60
147.60
113.40
71.30
315.10
69.00
Calcium
0.96
4.50
3.15
1.86
8.22
1.80
Phosphorus
0.64
2.70
2.25
1.24
5.48
1.20
12-Month Requirements in Pounds

Totals for
Rations

Totals for
Pastures

Totals for
12 Months

Dry Matter297054248394
Energy (TDN)1631.703027.024658.72
Crude Protein261.00497.00758.00
Calcium7.6512.8420.49
Phosphorus4.958.5613.51