Table 13. Twelve-month nutrient requirements for 1200-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
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

1488

2160
405
405
432
3699

810

Energy (TDN)
683.24
1135.80
237.75
237.75
243.68
2086.51
456.90
Crude Protein
92.38
168.30
40.95
40.95
40.16
343.87
75.30
Calcium
2.48
5.40
1.20
1.20
1.12
9.59
2.10
Phosphorus
1.86
3.60
0.75
0.75
0.80
6.85
1.50
12-Month Requirements in Pounds

Totals for
Rations

Totals for
Pastures

Totals for
12 Months

Dry Matter405353469399
Energy (TDN)2056.793024.845081.63
Crude Protein301.63500.28801.91
Calcium9.0814.0123.09
Phosphorus6.219.9016.11