Nutrient requirment table NRC

Contents

Mineral Requirements 1
Vitamin Requirements 2
Energy and Protein Requirements 3
Explanation of Nutrient Requirement Tables
Mature Cows 3
Two-Year-Old Heifers 3
Bred Heifers 4
Growing Steer, Heifer and Bull Calves 4
Growing Yearling Cattle 4
Yearling and Breeding Bulls 4
Tables

Table 1. Mineral Requirements and Maximum Tolerable 2
Concentrations
Table 2. Maximum Tolerable Concentrations of Mineral 2
Elements Toxic to Cattle
Table 3. Predicting Peak Milk in Beef Cows 3
Table 4. Nutrient Requirements of Mature Beef Cows to 5-7
Maintain Moderate Body Condition
Table 5. Nutrient Requirements to Increase Body 8
Condition Score of Mature Cows from 4 to 5
During the Last 90 Days of Pregnancy
Table 6. Nutrient Requirements to Increase Body 8
Condition Score of Open Mature Cows
Table 7. Nutrient Requirements of Two-Year-Old 9
Heifers (20 pounds peak milk)
Table 8. Nutrient Requirements of Pregnant 10
Replacement Heifers
Table 9. Nutrient Requirements of Growing Steer 11
and Heifer Calves
Table 10. Nutrient Requirements of Bull Calves (less 12
than 12 months of age, 2000 lb mature weight)
Table 11. Nutrient Requirements of Growing Yearlings – 13-15
Bulls, Steers and Heifers
Table 12. Nutrient Requirements of Yearling and 15-16
Breeding Bulls

Beef Cattle Nutrition Series

Part 3: Nutrient Requirement Tables

▼

Shane Gadberry
Assistant Professor - Nutrition
University of Arkansas Division of Agriculture
This report was prepared from information
contained in Nutrient Requirements of Beef Cattle,
Seventh Revised Edition, issued in 1996 (1996 NRC)
under the direction of the Subcommittee on Beef
Cattle Nutrition, Committee on Animal Nutrition,
Board on Agriculture and National Research
Council (NRC).
Since the publication of Nutrient Require
ments of Beef Cattle, Sixth Revised Edition (1984),
research efforts have been directed towards defining
the impact of beef cattle’s biological, production and
environmental diversities and variations on
nutrient utilization and requirements. The 1996
NRC edition utilized these results to evaluate
mathematical modeling in concert with
experimental data to more clearly define factors
that relate to nutrient requirements of beef cattle.
Some of these factors are: breed effects, sex, body
weight, body condition, milk composition and yield,
compensatory growth, environmental variation,
ionophores and implants, forage availability and
microbial yield.
Software is included with the 1996 NRC
publication to generate nutrient requirement tables
and evaluate rations based on factors that influence
nutrient requirements. Simple tables of dietary
requirements cannot do as good a job of accounting
for animal, feed, and environmental variations as
the NRC’s model. In many situations, however, the
dietary nutrient requirement tables in this
publication should be sufficient. Tables 4 to 12 were
compiled from (1) requirement tables in the 1996
NRC report, (2) data generated with the 1996 NRC
software and (3) additional calculations. The tables
were designed to give guidelines for formulating
cattle diets and for simple diagnostic or teaching
In the 1996 NRC report, metabolizeable
protein (MP) replaces crude protein (1984 NRC). MP
is defined as the true protein absorbed by the
intestine, supplied by microbial protein and
undegraded intake protein. Daily crude protein
requirements per animal reported in Tables 4
through 12 were computed as pounds of MP
required daily divided by 0.67. Animal weights in
the tables are shrunk body weights. Shrunk
body weight is 96 percent of full body weight.
▼Mineral Requirements
At least 17 minerals are required by beef
cattle. Macrominerals required include calcium,
magnesium, phosphorus, potassium, sodium and
chlorine, and sulfur. The microminerals required are
chromium, cobalt, copper, iodine, iron, manganese,
molybdenum, nickel, selenium and zinc. Other
minerals including arsenic, boron, lead, silicon and
vanadium have been shown to be essential for one
or more animal species, but there is no evidence
that these minerals are of practical importance in
beef cattle.
Calcium and phosphorus requirements are
shown in Tables 4 to 12. Calcium requirements are
similar to those in the 1984 NRC report because
new information is not sufficient to justify a change.
Calcium requirements are adjusted to 50 percent
true absorption. Phosphorus requirements for
maintenance are lower in the 1996 NRC report, and
the phosphorus requirements have been adjusted to
68 percent true absorption.
The requirements and maximum tolerable
concentrations for other minerals are shown in
Table 1. For certain minerals, requirements are not
listed because research data are inadequate to
purposes for the most common classes of beef cattle. determine requirements.

2
Table 1. Mineral Requirements and Maximum Tolerable Concentrations (in Percentage or PPM of Diet Dry Matter)
Requirement
Growing and Cows
Maximum
Tolerable
Mineral Unit Finishing Cattle Gestating Early Lactation Concentration
Chlorine % -- -- -- --
Chromium ppm -- -- -- 1,000
Cobalt ppm 0.10 0.10 0.10 10
Copper ppm 10.00 10.00 10.00 100
Iodine ppm 0.50 0.50 0.50 50
Iron ppm 50.00 50.00 50.00 1,000
Magnesium % 0.10 0.12 0.20 0.40
Manganese ppm 20.00 40.00 40.00 1,000
Molybdenum ppm -- -- -- 5
Nickel ppm -- -- -- 50
Potassium % 0.60 0.60 0.70 3
Selenium ppm 0.10 0.10 0.10 2
Sodium % 0.06-0.08 0.06-0.08 0.10 --
Sulfur % 0.15 0.15 0.15 0.40
Zinc ppm 30.00 30.00 30.00 500
Source: Adapted from Table 5-1 in Nutrient Requirements of Beef Cattle, National Research Council, 1996. Washington, D.C.:
National Academy of Sciences.
A number of elements that are not required (or tolerable concentration for a mineral has been
at least required only in very small amounts) can defined as “that dietary level that, when fed for a
cause toxicity in beef cattle. Maximum tolerable limited period, will not impair animal performance
concentrations of several elements known to be and should not produce unsafe residues in human
toxic to cattle are given in Table 2. The maximum food derived from the animal” (1980 NRC: p. 3).
Table 2. Maximum Tolerable Concentrations of Mineral Elements
Toxic to Cattle (in PPM of Diet Dry Matter)
Element
Aluminum
Arsenic
Bromine
Cadmium
Fluorine
Lead
Mercury
Strontium
ppm
1,000

50 (100 for

organic forms)

200

0.5

40 to 100

30

2

2,000

Source: Adapted from Table 1 in National Research Council, 1980. Mineral
Tolerance of Domestic Animals. Washington, D.C.: National Academy of Sciences.
▼Vitamin Requirements
Beef cattle requirements for vitamin A are
1,000 IU/lb dry feed for beef feedlot cattle; 1,270
The vitamin most likely to be deficient in beef
IU/lb dry feed for pregnant beef heifers and cows;
cattle diets is vitamin A. Vitamin A can be stored in
and 1,770 IU/lb dry feed for lactating cows and
the liver to prevent vitamin A deficiency. No more
breeding bulls. These requirements are the same as

than 2 to 4 months of protection from stored
those given in the 1984 NRC report.

vitamin A can be expected.

3

Vitamin D is synthesized by beef cattle
exposed to sunlight or fed sun-cured forages.
Therefore, animals rarely require vitamin D
supplementation. The vitamin D requirement of
beef cattle is 125 IU/lb dry diet.
Determining vitamin E requirements of
ruminants is difficult because of its inter
relationships with other dietary components.
Vitamin E requirements depend on concentrations
of antioxidants, sulfur-containing amino acids, and
selenium in the diet. Vitamin E is not stored in the
body in large concentrations. The vitamin E
requirement for beef cattle has not been established
but is estimated to be between 7 and 27 IU/lb dry
diet for young calves.
▼Energy and Protein Requirements
In most beef production situations, cattle are
fed to appetite with either high forage (stocker,
backgrounding, cow-calf) or high-grain diets
(growing and finishing cattle) and are
supplemented to support the energy allowable
production, based on group averages. The
requirement tables were designed with that
in mind.
Tables 4 to 12 show energy, protein, calcium,
phosphorus and vitamin A requirements as
1) nutrient density of the diet on a dry-matter basis
and 2) daily nutrient requirements per animal in
pounds, Mcal’s or IU’s.
Diet NEm (net energy for maintenance) was
used to predict DMI. All diet density requirements
reflect these predicted DMI and tabular feed NE
values. In situations where the predicted DMI is
overestimated, the diet density requirement is
underestimated and adjustments should be made in
the diet.
Explanation of Nutrient Requirement Tables

▼Mature Cows
Table 4 for mature cows includes the nutrient
requirements of cows for months 1 to 12 since
calving. Requirements are shown for mature cow
weights (one month after calving) of 900, 1,000,
1,100, 1,200, 1,300 and 1,400 pounds and three
levels of peak milk production (10, 20 and 30
pounds) during a 29-week lactation for each weight
class. The milk production levels cover the range of
expected peak milk given for 28 breeds of beef
cattle. Table 3 provides information for predicting
peak milk production of beef cows.
Table 3. Predicting Peak Milk in Beef Cowsa
Peak Milk (lb/day)
Mature
Wt. (lb)
10 15 20 25 30
Avg. expected 7 month male calf weight (lb)
900
1000
1100
1200
1300
1400
440
460
480
500
520
540
465
485
510
530
550
570
495
515
540
560
580
600
---
545
565
585
605
625
---
570
590
615
635
655
aAdapted from Appendix Table 12 in National Research Council, 1996.
Nutrient Requirements of Beef Cattle.
Calves born from 1,200 pound cows were
assumed to weigh 80 pounds. A similar ratio of
calf:cow birth weights was used for the other cow
weight classes. Requirements are generated for
each of the 12 months of the reproductive cycle.
Month 1 of the reproductive cycle is the first month
after calving. Within each weight class, nutrient
requirements are the same for all cows during
months 7 through 12 regardless of peak milk level.
Expected milk yield is shown for months 1 through
6 since calving.
Table 5 includes the nutrient requirements to
increase the body condition score (BCS) of beef cows
from a BCS 4 to a BCS 5 during the last 90 days
of pregnancy.
Table 6 provides the nutrient requirements to
increase the BCS of thin, open, mature cows. The
nutrient requirements are based on increasing body
condition by one score over a 30- or 60-day period.
If the desired body condition change is greater
than 1, multiply the amount of body condition score
change desired by either 30 or 60 days, depending
on the selected plane of nutrition. For example, if
increasing BCS from 3 to 6 and using the 30-day
nutrient requirements, it will take 90 days
(3 BCS’s x 30 days) to achieve a BCS 6 at this level
of nutrients in the diet.
▼Two-Year-Old Heifers
Table 7 for two-year-old heifers includes the
requirements for animals with mature weights of
900 to 1,400 pounds. The table was generated for
heifers with 20 pounds of peak milk production.

_______________________

4

Actual body weights are shown for months 1
through 12 for all weight classes. Calf:cow birth
weight ratios are the same as mature cows.
▼Bred Heifers
Table 8 for bred heifers includes the
requirements for animals with mature weights of
900 to 1,400 pounds. Nutrient requirements are
shown for 9 months. Month 1 is the first month of
pregnancy. Target ADG and body weights are shown
for each month from breeding to calving. The target
ADG for growth was computed as target calving
weight minus target breeding weight divided by 280
days of gestation. Target calving weight is 80
percent of mature weight and target puberty weight
is 60 percent of mature weight (65 percent for
Bos indicus).
▼Growing Steer, Heifer and Bull Calves
Table 9 shows nutrient requirements for
growing steer and heifer calves (less than 12
months of age, implanted with a growth stimulant).
Requirements are shown for calves with expected
finishing weights of 1,100 and 1,200 lb (28 percent
body fat) or maturity (replacement heifers).
Table 10 shows nutrient requirements of
growing bull calves (less than 12 months of age)
with a mature weight of 2,000 pounds.
▼Growing Yearling Cattle
Table 11 shows nutrient requirements for
growing and finishing yearling steers and heifers
(1000-1400 lbs at finishing – 28% body fat) or
maturity (replacement yearling heifers). Within
each final weight, the weight ranges given are 55 to
80 percent of final weight to reflect typical feeding
group averages. Diet density requirements are
given for the diet energy allowable ADG rather than
a specific ADG. It is assumed that cattle are fed a
particular diet free-choice and that only
replacement heifers are fed for a target ADG. The
user can estimate the requirements for a particular
ADG by finding the nearest value in the table.
▼Yearling and Breeding Bulls
Tables 11 and 12 show nutrient requirements
of bulls. Table 11 shows requirements for yearling
bulls in early stages of development that weigh less
than 50 percent of their expected mature weight. To
use Table 11, multiply the bull’s mature weight by
0.60 to determine the animals’ weight class at
finishing. Nutrient requirements for bulls that
weigh more than 50 percent of their mature weight
are shown in Table 12.
▼Beef Cattle Nutrition Series Publications
Part 1. Nutrient Basics (FSA3078)
Part 2. Establishing Nutritional Requirements
(FSA3079)
Part 3. Nutrient Requirement Tables (MP391)
Part 4. Formulating Rations (FSA3080)
Some of the information in this publication was taken from
Nutrient Requirements of Beef Cattle, Seventh Revised
Edition (1996 NRC). Tabular values were compiled from the
1996 NRC report, software provided with the 1996 NRC
publication and additional calculations.

5
Table 4. Nutrient Requirements of Mature Beef Cows to Maintain Moderate Body Condition
Months
Since Milk DMI
Calving (lb/day) (lb/day)
Diet Nutrient Density Daily Nutrients per Animal
TDN CP
ME NEm Ca P
(%DM) (%DM)
(Mcal/lb) (Mcal/lb) (%DM) (%DM)
Vit. A
TDN ME CP
NEm Ca P (1000's
(lb) (Mcal) (lb)
(Mcal) (lb) (lb) IU)
900 lb Mature Weight
10 lb Peak Milk
1 8.3 20.2 56.2 8.9
0.94 0.55 0.24 0.17 11.4 19.0 1.79
11.1 .049 .033 36
2 10.0 20.6 57.0 9.3
0.95 0.56 0.25 0.17 11.7 19.6 1.92
11.7 .053 .035 36
3 9.0 21.4 54.8 8.6
0.92 0.53 0.23 0.16 11.7 19.7 1.84
11.3 .051 .035 38
4 7.2 21.0 53.8 8.1
0.90 0.51 0.22 0.15 11.3 18.9 1.70
10.8 .046 .031 37
5 5.4 20.5 52.8 7.7
0.88 0.50 0.20 0.14 10.8 18.0 1.57
10.2 .042 .029 36
6 3.9 20.2 52.0 7.2
0.87 0.49 0.18 0.13 10.5 17.6 1.45
9.8 .037 .026 36
20 lb Peak Milk
1 16.7 22.6 60.2 10.8
1.01 0.61 0.30 0.20 13.6 22.8 2.44
13.8 .068 .044 40
2 20.0 23.5 61.6 11.5
1.03 0.64 0.33 0.21 14.5 24.2 2.70
14.9 .077 .051 42
3 18.0 23.8 59.2 10.7
0.99 0.60 0.30 0.20 14.1 23.6 2.54
14.3 .073 .046 42
4 14.4 22.9 57.6 9.9
0.96 0.57 0.28 0.18 13.2 22.0 2.26
13.1 .064 .042 41
5 10.8 21.9 55.8 9.1
0.93 0.55 0.25 0.17 12.2 20.4 1.99
12.0 .055 .037 39
6 7.8 21.1 54.3 8.3
0.91 0.52 0.22 0.15 11.5 19.2 1.76
11.0 .046 .033 37
30 lb Peak Milk
1 25.0 24.9 63.6 12.4
1.06 0.67 0.36 0.23 15.8 26.4 3.09
16.5 .088 .057 44
2 30.0 26.3 65.4 13.2
1.09 0.69 0.39 0.24 17.2 28.7 3.48
18.2 .101 .064 47
3 27.0 26.3 62.9 12.3
1.05 0.65 0.36 0.23 16.5 27.6 3.24
17.2 .095 .060 47
4 21.6 24.8 60.8 11.4
1.02 0.62 0.33 0.21 15.1 25.3 2.83
15.5 .082 .053 44
5 16.2 23.4 58.5 10.3
0.98 0.59 0.29 0.19 13.7 22.9 2.41
13.7 .068 .044 41
6 11.7 22.2 56.4 9.3
0.94 0.56 0.25 0.17 12.5 20.9 2.06
12.3 .057 .037 39
10, 20, 30 lb Peak Milk
7 0.0 18.0 46.8 0.78 0.40 6.5 0.15 0.12 8.4 14.0 1.17
7.2 .028 .022 23
8 0.0 18.3 47.2 0.79 0.41 6.6 0.15 0.12 8.6 14.5 1.20
7.5 .028 .022 23
9 0.0 18.7 47.8 0.80 0.42 6.7 0.15 0.12 8.9 15.0 1.25
7.9 .028 .022 24
10 0.0 19.4 48.8 0.82 0.43 6.9 0.24 0.15 9.5 15.9 1.34
8.3 .046 .029 25
11 0.0 19.4 51.8 0.87 0.48 7.6 0.24 0.15 10.0 16.9 1.47
9.3 .046 .029 25
12 0.0 19.7 55.5 0.93 0.54 8.6 0.24 0.15 10.9 18.3 1.70
10.6 .046 .029 25
1,000 lb Mature Weight
10 lb Peak Milk
1 8.3 21.6 55.8 0.93 0.55 8.7 0.24 0.17 12.1 20.1 1.88
11.8 .051 .035 38
2 10.0 22.1 56.6 0.95 0.56 9.1 0.25 0.17 12.5 21.0 2.01
12.3 .055 .037 39
3 9.0 23.0 54.3 0.91 0.52 8.4 0.23 0.16 12.5 20.9 1.93
12.0 .053 .037 41
4 7.2 22.5 53.4 0.89 0.51 8.0 0.22 0.15 12.0 20.0 1.80
11.5 .049 .033 40
5 5.4 22.1 52.5 0.88 0.49 7.5 0.20 0.14 11.6 19.4 1.66
10.9 .044 .031 39
6 3.9 21.7 51.8 0.86 0.48 7.1 0.19 0.14 11.2 18.7 1.55
10.5 .040 .029 38
20 lb Peak Milk
1 16.7 24.0 59.6 1.00 0.60 10.5 0.30 0.20 14.3 24.0 2.53
14.5 .073 .049 42
2 20.0 25.0 60.9 1.02 0.62 11.2 0.32 0.21 15.2 25.5 2.79
15.6 .079 .053 44
3 18.0 25.4 58.6 0.98 0.59 10.4 0.30 0.19 14.9 24.9 2.64
15.0 .075 .049 45
4 14.4 24.4 57.0 0.95 0.56 9.7 0.27 0.18 13.9 23.2 2.36
13.8 .066 .044 43
5 10.8 23.5 55.4 0.92 0.54 8.9 0.24 0.17 13.0 21.6 2.08
12.7 .057 .040 42
6 7.8 22.7 54.0 0.90 0.52 8.2 0.22 0.15 12.3 20.4 1.85
11.7 .051 .035 40
30 lb Peak Milk
1 25.0 26.4 62.8 1.05 0.65 12.1 0.35 0.22 16.6 27.7 3.18
17.2 .093 .060 47
2 30.0 27.8 64.5 1.08 0.68 12.9 0.38 0.24 17.9 30.0 3.57
18.9 .104 .066 49
3 27.0 27.8 62.1 1.04 0.64 12.0 0.35 0.22 17.3 28.9 3.34
17.9 .097 .062 49
4 21.6 26.4 60.1 1.00 0.61 11.1 0.32 0.21 15.9 26.4 2.92
16.1 .084 .055 47
5 16.2 24.9 57.9 0.97 0.58 10.0 0.28 0.19 14.4 24.2 2.50
14.4 .071 .046 44
6 11.7 23.7 55.9 0.93 0.55 9.1 0.25 0.17 13.2 22.0 2.16
13.0 .060 .040 42
7 0.0 19.5 46.8 0.78 0.40 6.5 0.16 0.12 9.1 15.2 1.26
7.8 .031 .024 25
8 0.0 19.8 47.2 0.79 0.41 6.6 0.16 0.12 9.3 15.6 1.30
8.1 .031 .024 25
9 0.0 20.3 47.9 0.80 0.42 6.7 0.16 0.12 9.7 16.2 1.35
8.5 .031 .024 26
10 0.0 21.1 48.9 0.82 0.44 6.9 0.24 0.15 10.3 17.3 1.45
9.3 .051 .032 27
11 0.0 21.0 52.1 0.87 0.49 7.7 0.24 0.15 10.9 18.3 1.61
10.3 .051 .032 27
12 0.0 21.4 55.9 0.93 0.55 8.7 0.24 0.15 12.0 19.9 1.86
11.8 .051 .032 27

6
Table 4 (Continued). Nutrient Requirements of Mature Beef Cows to Maintain Moderate Body Condition
Months
Since Milk DMI
TDN ME NEm CP Ca
(%DM)
(%DM) (Mcal/lb) (Mcal/lb) (%DM)
P
(%DM)
TDN
(lb)
ME NEm CP Ca
(Mcal) (Mcal) (lb) (lb)
P
(lb)
Vit. A
(1000's
IU)
10 lb Peak Milk
1 8.3 23.1 55.6 0.93 0.54 8.5 0.24 0.17 12.8 21.5 12.5 1.97 .055 .037 41
2 10.0 23.5 56.3 0.94 0.55 8.9 0.25 0.17 13.2 22.1 13.0 2.10 .060 .040 42
3 9.0 24.5 54.1 0.90 0.52 8.2 0.23 0.16 13.3 22.1 12.7 2.02 .055 .040 43
4 7.2 24.1 53.2 0.89 0.50 7.8 0.21 0.15 12.8 21.4 12.1 1.89 .051 .037 43
5 5.4 23.6 52.3 0.87 0.49 7.4 0.20 0.14 12.3 20.5 11.6 1.75 .046 .033 42
6 3.9 23.3 51.6 0.86 0.48 7.0 0.19 0.14 12.0 20.0 11.2 1.64 .044 .031 41
20 lb Peak Milk
1 16.7 25.4 59.1 0.99 0.60 10.3 0.29 0.20 15.0 25.1 15.2 2.62 .075 .051 45
2 20.0 26.4 60.4 1.01 0.62 10.9 0.31 0.21 15.9 26.7 16.3 2.88 .084 .055 47
3 18.0 26.9 58.1 0.97 0.58 10.2 0.29 0.19 15.6 26.1 15.6 2.73 .077 .051 48
4 14.4 26.0 56.6 0.95 0.56 9.4 0.27 0.18 14.7 24.7 14.5 2.45 .068 .046 46
5 10.8 25.0 55.0 0.92 0.53 8.7 0.24 0.17 13.8 23.0 13.3 2.17 .060 .042 44
6 7.8 24.2 53.7 0.90 0.51 8.1 0.22 0.15 13.0 21.8 12.4 1.95 .053 .037 43
30 lb Peak Milk
1 25.0 27.8 62.2 1.04 0.64 11.8 0.34 0.22 17.3 28.9 17.9 3.27 .095 .062 49
2 30.0 29.2 63.9 1.07 0.67 12.5 0.37 0.24 18.7 31.2 19.5 3.66 .108 .068 52
3 27.0 29.4 61.5 1.03 0.63 11.7 0.34 0.22 18.1 30.3 18.6 3.43 .099 .064 52
4 21.6 27.9 59.5 0.99 0.60 10.8 0.31 0.20 16.6 27.6 16.8 3.01 .086 .057 49
5 16.2 26.4 57.4 0.96 0.57 9.8 0.28 0.19 15.2 25.3 15.1 2.59 .073 .049 47
6 11.7 25.3 55.6 0.93 0.54 8.9 0.25 0.17 14.1 23.5 13.7 2.25 .062 .042 45
7 0.0 20.9 46.8 0.78 0.40 6.5 0.16 0.12 9.8 16.3 8.4 1.36 .033 .026 27
8 0.0 21.2 47.2 0.79 0.41 6.6 0.16 0.12 10.0 16.7 8.7 1.40 .033 .026 27
9 0.0 21.8 47.9 0.80 0.42 6.7 0.16 0.12 10.4 17.4 9.2 1.45 .033 .026 28
10 0.0 22.6 48.9 0.82 0.44 7.0 0.25 0.16 11.1 18.5 9.9 1.56 .057 .036 29
11 0.0 22.5 52.1 0.87 0.49 7.7 0.25 0.16 11.7 19.6 11.0 1.73 .057 .036 29
12 0.0 23.0 56.0 0.94 0.55 8.7 0.25 0.16 12.9 21.6 12.7 2.00 .057 .036 29
10 lb Peak Milk
1 8.3 24.4 55.3 0.92 0.54 8.4 0.24 0.17 13.5 22.4 13.1 2.06 .057 .040 43
2 10.0 24.9 56.0 0.94 0.55 8.8 0.25 0.17 13.9 23.4 13.7 2.19 .062 .042 44
3 9.0 26.0 53.7 0.90 0.51 8.1 0.23 0.16 14.0 23.4 13.4 2.12 .060 .042 46
4 7.2 25.6 52.9 0.88 0.50 7.7 0.21 0.15 13.5 22.5 12.8 1.98 .055 .040 45
5 5.4 25.1 52.1 0.87 0.49 7.3 0.20 0.14 13.1 21.8 12.2 1.84 .051 .035 44
6 3.9 24.8 51.5 0.86 0.48 7.0 0.19 0.14 12.8 21.3 11.8 1.73 .046 .035 44
20 lb Peak Milk
1 16.7 26.8 58.7 0.98 0.59 10.1 0.29 0.19 15.7 26.3 15.8 2.71 .077 .053 47
2 20.0 27.8 59.9 1.00 0.61 10.7 0.31 0.21 16.7 27.8 16.9 2.97 .086 .057 49
3 18.0 28.4 57.6 0.96 0.57 9.9 0.29 0.19 16.4 27.3 16.3 2.82 .082 .055 50
4 14.4 27.4 56.2 0.94 0.55 9.3 0.26 0.18 15.4 25.8 15.1 2.54 .073 .049 48
5 10.8 26.5 54.7 0.91 0.53 8.5 0.24 0.17 14.5 24.1 14.0 2.26 .064 .044 47
6 7.8 25.7 53.4 0.89 0.51 7.9 0.22 0.15 13.7 22.9 13.1 2.04 .055 .040 45
30 lb Peak Milk
1 25.0 29.2 61.6 1.03 0.64 11.5 0.34 0.22 18.0 30.1 18.6 3.36 .099 .064 52
2 30.0 30.6 63.2 1.06 0.66 12.3 0.36 0.23 19.3 32.4 20.2 3.75 .110 .071 54
3 27.0 30.8 60.8 1.02 0.62 11.4 0.34 0.22 18.7 31.4 19.2 3.52 .104 .066 54
4 21.6 29.4 59.0 0.99 0.59 10.6 0.31 0.20 17.3 29.1 17.5 3.10 .090 .060 52
5 16.2 27.9 57.0 0.95 0.56 9.6 0.27 0.18 15.9 26.5 15.8 2.68 .077 .051 49
6 11.7 26.7 55.2 0.92 0.54 8.8 0.25 0.17 14.7 24.6 14.4 2.34 .066 .046 47
7 0.0 22.4 46.9 0.78 0.40 6.5 0.16 0.13 10.5 17.5 9.0 1.45 .037 .029 28
8 0.0 22.8 47.3 0.79 0.41 6.5 0.16 0.13 10.8 18.0 9.3 1.49 .037 .029 29
9 0.0 23.3 47.9 0.80 0.42 6.7 0.16 0.13 11.2 18.6 9.8 1.56 .037 .029 30
10 0.0 24.3 49.0 0.82 0.44 6.9 0.25 0.16 11.9 19.9 10.7 1.67 .062 .040 31
11 0.0 24.1 52.3 0.87 0.49 7.7 0.25 0.16 12.6 21.0 11.8 1.86 .062 .040 31
12 0.0 24.6 56.2 0.94 0.55 8.8 0.25 0.16 13.8 23.1 13.5 2.16 .062 .040 31

7
Table 4 (Continued). Nutrient Requirements of Mature Beef Cows to Maintain Moderate Body Condition
Months
Since Milk DMI
TDN CP
ME NEm Ca P
(%DM) (%DM)
Vit. A
TDN CP
ME NEm Ca P (1000's
(lb) (lb)
(Mcal) (Mcal) (lb) (lb) IU)
10 lb Peak Milk
1 8.3 25.8 55.1 8.3
0.92 0.53 0.23 0.17 14.2 2.15
23.7 13.8 .060 .042 46
2 10.0 26.3 55.8 8.7
0.93 0.55 0.25 0.17 14.7 2.28
24.5 14.3 .064 .046 47
3 9.0 27.5 53.5 8.0
0.89 0.51 0.23 0.16 14.7 2.20
24.5 14.0 .062 .044 49
4 7.2 27.0 52.7 7.6
0.88 0.50 0.21 0.15 14.2 2.06
23.8 13.4 .057 .042 48
5 5.4 26.6 52.0 7.3
0.87 0.49 0.20 0.15 13.8 1.93
23.1 12.9 .053 .040 47
6 3.9 26.3 51.4 6.9
0.86 0.48 0.19 0.14 13.5 1.82
22.6 12.5 .051 .037 47
20 lb Peak Milk
1 16.7 28.2 58.4 9.9
0.98 0.59 0.29 0.19 16.5 2.80
27.6 16.5 .082 .055 50
2 20.0 29.1 59.5 10.5
0.99 0.60 0.31 0.21 17.3 3.06
28.8 17.6 .088 .060 51
3 18.0 29.9 57.2 9.7
0.96 0.57 0.28 0.19 17.1 2.91
28.7 16.9 .084 .057 53
4 14.4 28.9 55.9 9.1
0.93 0.55 0.26 0.18 16.2 2.63
26.9 15.8 .075 .051 51
5 10.8 28.0 54.4 8.4
0.91 0.52 0.24 0.17 15.2 2.35
25.5 14.6 .066 .046 50
6 7.8 27.2 53.3 7.8
0.89 0.51 0.22 0.15 14.5 2.13
24.2 13.7 .060 .042 48
30 lb Peak Milk
1 25.0 30.6 61.2 11.3
1.02 0.63 0.33 0.22 18.7 3.45
31.2 19.2 .101 .066 54
2 30.0 32.0 62.7 12.0
1.05 0.65 0.36 0.23 20.1 3.84
33.6 20.8 .115 .073 57
3 27.0 32.3 60.3 11.2
1.01 0.62 0.33 0.21 19.5 3.61
32.6 19.9 .106 .068 57
4 21.6 30.8 58.5 10.4
0.98 0.59 0.30 0.20 18.1 3.19
30.3 18.1 .093 .062 55
5 16.2 29.4 56.6 9.4
0.95 0.56 0.27 0.18 16.6 2.77
27.9 16.4 .079 .055 52
6 11.7 28.2 55.0 8.6
0.92 0.53 0.24 0.17 15.5 2.43
25.9 15.0 .068 .049 50
7 0.0 23.8 46.9 0.78 0.40 6.5 0.17 0.13 11.2 1.54
18.6 9.5 .040 .031 30
8 0.0 24.2 47.3 0.79 0.41 6.5 0.17 0.13 11.4 1.58
19.1 9.9 .040 .031 31
9 0.0 24.8 48.0 0.80 0.42 6.7 0.17 0.13 11.9 1.66
19.8 10.4 .040 .031 31
10 0.0 25.8 49.0 0.82 0.44 6.9 0.26 0.16 12.6 1.78
21.2 11.4 .066 .042 32
11 0.0 25.6 52.5 0.88 0.49 7.8 0.26 0.16 13.4 1.99
22.5 12.5 .066 .042 33
12 0.0 26.1 56.5 0.94 0.56 8.9 0.26 0.16 14.7 2.31
24.5 14.6 .066 .042 33
10 lb Peak Milk
1 8.3 27.1 54.9 0.92 0.53 8.2 0.23 0.17 14.9 24.9 14.4 2.23 .064 .046 48
2 10.0 27.6 55.5 0.93 0.54 8.6 0.25 0.17 15.3 25.7 15.0 2.36 .068 .049 49
3 9.0 28.9 53.3 0.89 0.51 7.9 0.23 0.16 15.4 25.7 14.6 2.29 .066 .046 51
4 7.2 28.5 52.5 0.88 0.49 7.6 0.21 0.15 15.0 25.1 14.1 2.15 .062 .044 50
5 5.4 28.0 51.8 0.86 0.48 7.2 0.20 0.15 14.5 24.1 13.5 2.02 .057 .042 50
6 3.9 27.7 51.2 0.86 0.47 6.9 0.19 0.14 14.2 23.8 13.1 1.91 .053 .040 49
20 lb Peak Milk
1 16.7 29.5 58.0 0.97 0.58 9.8 0.28 0.19 17.1 28.6 17.1 2.88 .084 .057 52
2 20.0 30.5 59.1 0.99 0.60 10.3 0.30 0.20 18.0 30.2 18.2 3.14 .093 .062 54
3 18.0 31.3 56.8 0.95 0.56 9.6 0.28 0.19 17.8 29.7 17.6 2.99 .088 .060 55
4 14.4 30.3 55.5 0.93 0.54 8.9 0.26 0.18 16.8 28.2 16.4 2.70 .079 .053 54
5 10.8 29.4 54.1 0.90 0.52 8.3 0.24 0.17 15.9 26.5 15.3 2.44 .071 .049 52
6 7.8 28.6 53.0 0.89 0.50 7.7 0.22 0.16 15.2 25.5 14.4 2.21 .062 .044 51
30 lb Peak Milk
1 25.0 31.9 60.7 1.01 0.62 11.1 0.33 0.22 19.4 32.2 19.8 3.53 .104 .068 56
2 30.0 33.3 62.2 1.04 0.64 11.8 0.35 0.23 20.7 34.6 21.5 3.93 .117 .075 59
3 27.0 33.7 59.8 1.00 0.61 11.0 0.32 0.21 20.2 33.7 20.5 3.69 .110 .073 60
4 21.6 32.3 58.1 0.97 0.58 10.2 0.30 0.20 18.8 31.3 18.8 3.27 .097 .064 57
5 16.2 30.8 56.2 0.94 0.55 9.3 0.27 0.18 17.3 29.0 17.0 2.86 .084 .057 54
6 11.7 29.6 54.7 0.91 0.53 8.5 0.24 0.17 16.2 26.9 15.7 2.52 .073 .051 52
7 0.0 25.2 46.9 0.78 0.40 6.5 0.17 0.13 11.8 19.7 10.1 1.63 .044 .033 32
8 0.0 25.6 47.3 0.79 0.41 6.5 0.17 0.13 12.1 20.2 10.5 1.67 .044 .033 33
9 0.0 26.2 48.0 0.80 0.42 6.7 0.17 0.13 12.6 21.0 11.0 1.75 .044 .033 33
10 0.0 27.3 49.1 0.82 0.44 6.9 0.26 0.16 13.4 22.4 12.0 1.89 .071 .044 35
11 0.0 27.0 52.6 0.88 0.50 7.8 0.26 0.16 14.2 23.8 13.5 2.11 .071 .044 34
12 0.0 27.6 56.6 0.95 0.56 8.9 0.26 0.16 15.6 26.2 15.5 2.45 .071 .044 35

8
Table 5. Nutrient Requirements to Increase Body Condition Score of Mature Cows from 4 to 5 During the Last 90 Days
of Pregnancy
Mature
Weight DMI TDN NEm CP Ca P TDN NEm CP Ca P Vit. A
(@BCS 5) (lb/day) (% DM) (Mcal/lb) (% DM) (% DM) (% DM) (lb) (Mcal) (lb) (lb) (lb) (1,000’s IU)
1,000 20.5 60 0.59 7.7 0.36 0.2 12.3 12.1 1.57 0.074 0.040 26
1,100 22 60 0.58 7.5 0.35 0.2 13.2 12.8 1.65 0.078 0.043 28
1,200 23.5 59 0.58 7.4 0.34 0.19 13.9 13.6 1.74 0.081 0.045 30
Table 6. Nutrient Requirements to Increase Body Condition Score of Open Mature Cows
Mature Days to
Weight Current Gain DMI
(@BCS 5) BCS 1 BCS (lb/day)
TDN NEm CP Ca P
(% DM) (Mcal/lb) (% DM) (% DM) (% DM)
TDN NEm CP Ca P Vit. A
(lb) (Mcal) (lb) (lb) (lb) (1,000’s IU)
30 18.8 64 0.65 6.1 0.28 0.16 12.0 12.2 1.14 0.053 0.031 24
3
60 17.7 57 0.55 6.4 0.23 0.15 10.1 9.8 1.14 0.041 0.026 28
1,000
30 20.5 66 0.67 5.9 0.27 0.16 13.5 13.8 1.21 0.056 0.033 26
4
60 19.0 58 0.56 6.4 0.23 0.15 11.0 10.7 1.21 0.044 0.028 24
30 20.3 65 0.66 6.0 0.29 0.17 13.2 13.4 1.22 0.058 0.034 26
3
60 19.0 58 0.56 6.4 0.24 0.15 11.0 10.6 1.22 0.045 0.029 24
1,100
30 22.2 67 0.69 5.9 0.28 0.16 14.9 15.3 1.30 0.062 0.036 28
4
60 20.4 58 0.57 6.4 0.24 0.15 11.8 11.6 1.30 0.048 0.030 26
30 21.0 65 0.69 6.2 0.30 0.18 13.7 14.5 1.30 0.063 0.037 27
3
60 20.3 58 0.56 6.4 0.24 0.15 11.8 11.3 1.30 0.048 0.031 26
1,200
30 23.5 67 0.68 5.9 0.28 0.16 15.7 16.0 1.38 0.065 0.038 30
4
60 21.8 58 0.56 6.3 0.23 0.15 12.6 12.3 1.38 0.051 0.033 28

9
Table 7. Nutrient Requirements of Two-Year-Old Heifers (20 pounds peak milk)
Months Body
Since Wt. Milk DMI
Calving (lb) (lb/day) (lb/day)
TDN ME NEm CP Ca
(%DM) (Mcal/lb) (Mcal/lb) (%DM) (%DM)
P
(%DM)
TDN
(lb)
ME NEm CP Ca P
(Mcal) (Mcal) (lb) (lb) (lb)
Vit. A
(1000's
IU)
1 729 12.3 19.1 61.4 1.03 0.63 10.8 0.31 0.20 11.7 19.7 12.0 2.07 .059 .038 34
2 738 14.8 19.9 62.6 1.05 0.65 11.4 0.33 0.21 12.5 20.9 12.9 2.27 .066 .042 35
3 748 13.3 20.4 60.3 1.01 0.62 10.6 0.30 0.19 12.3 20.6 12.6 2.16 .061 .039 36
4 758 10.7 19.8 58.8 0.98 0.59 9.9 0.28 0.18 11.6 19.4 11.7 1.96 .055 .036 35
5 769 8.0 19.3 57.4 0.96 0.57 9.2 0.26 0.17 11.1 18.5 11.0 1.77 .050 .033 34
6 781 5.8 18.8 56.2 0.94 0.55 8.6 0.23 0.15 10.6 17.7 10.3 1.61 .043 .028 33
7 794 0.0 17.4 48.5 0.81 0.43 6.8 0.17 0.12 8.4 14.1 7.5 1.18 .030 .021 22
8 810 0.0 17.5 49.2 0.82 0.44 7.0 0.17 0.12 8.6 14.4 7.7 1.22 .030 .021 22
9 830 0.0 17.7 50.5 0.84 0.46 7.2 0.17 0.12 8.9 14.9 8.1 1.28 .030 .021 22
10 854 0.0 17.9 52.4 0.88 0.49 7.7 0.27 0.16 9.4 15.8 8.8 1.38 .048 .029 23
11 885 0.0 18.3 55.2 0.92 0.54 8.3 0.27 0.16 10.1 16.8 9.9 1.52 .049 .029 23
12 925 0.0 18.9 58.7 0.98 0.59 9.3 0.26 0.16 11.1 18.5 11.2 1.75 .049 .030 24
1 810 12.3 20.4 61.0 1.02 0.63 10.6 0.31 0.19 12.4 20.8 12.9 2.16 .063 .039 36
2 820 14.8 21.2 62.1 1.04 0.64 11.1 0.32 0.20 13.2 22.0 13.6 2.36 .068 .042 38
3 831 13.3 21.8 59.8 1.00 0.61 10.4 0.30 0.19 13.0 21.8 13.3 2.26 .065 .041 39
4 843 10.7 21.2 58.5 0.98 0.59 9.7 0.28 0.18 12.4 20.8 12.5 2.06 .059 .038 38
5 854 8.0 20.7 57.1 0.95 0.57 9.0 0.25 0.17 11.8 19.7 11.8 1.87 .052 .035 37
6 868 5.8 20.3 56.0 0.94 0.55 8.4 0.23 0.16 11.4 19.1 11.2 1.71 .047 .032 36
7 883 0.0 18.8 48.6 0.81 0.43 6.9 0.18 0.13 9.1 15.2 8.1 1.29 .034 .024 24
8 900 0.0 18.9 49.4 0.83 0.44 7.0 0.18 0.13 9.3 15.7 8.3 1.33 .034 .025 24
9 922 0.0 19.1 50.7 0.85 0.46 7.3 0.18 0.13 9.7 16.2 8.8 1.39 .034 .025 24
10 949 0.0 19.4 52.7 0.88 0.50 7.7 0.28 0.17 10.2 17.1 9.7 1.50 .054 .033 25
11 984 0.0 19.9 55.5 0.93 0.54 8.3 0.28 0.16 11.0 18.5 10.7 1.66 .056 .033 25
12 1028 0.0 20.6 59.1 0.99 0.60 9.3 0.27 0.16 12.2 20.4 12.4 1.92 .056 .033 26
1 891 12.3 21.6 60.7 1.01 0.62 10.4 0.30 0.19 13.1 21.8 13.4 2.25 .065 .041 38
2 902 14.8 22.5 61.7 1.03 0.64 10.9 0.32 0.20 13.9 23.2 14.4 2.45 .072 .045 40
3 915 13.3 23.2 59.5 0.99 0.60 10.1 0.30 0.19 13.8 23.0 13.9 2.35 .070 .044 41
4 927 10.7 22.6 58.2 0.97 0.58 9.6 0.27 0.18 13.2 21.9 13.1 2.16 .061 .041 40
5 940 8.0 22.1 56.9 0.95 0.56 8.9 0.25 0.17 12.6 21.0 12.4 1.96 .055 .038 39
6 954 5.8 21.7 55.9 0.93 0.55 8.3 0.23 0.16 12.1 20.2 11.9 1.81 .050 .035 38
7 971 0.0 20.2 48.8 0.82 0.43 6.9 0.18 0.13 9.9 16.6 8.7 1.39 .036 .026 26
8 990 0.0 20.4 49.5 0.83 0.45 7.0 0.18 0.13 10.1 16.9 9.2 1.43 .037 .027 26
9 1014 0.0 20.6 50.8 0.85 0.47 7.3 0.18 0.13 10.5 17.5 9.7 1.50 .037 .027 26
10 1044 0.0 20.9 52.8 0.88 0.50 7.7 0.29 0.17 11.0 18.4 10.5 1.61 .060 .036 27
11 1082 0.0 21.4 55.7 0.93 0.54 8.4 0.28 0.17 11.9 19.9 11.6 1.79 .060 .036 27
12 1130 0.0 22.1 59.4 0.99 0.60 9.4 0.27 0.16 13.1 21.9 13.3 2.07 .060 .036 28
1 972 12.3 22.9 60.4 1.01 0.62 10.2 0.30 0.19 13.8 23.1 14.2 2.34 .069 .044 41
2 984 14.8 23.8 61.4 1.03 0.63 10.7 0.32 0.20 14.6 24.5 15.0 2.55 .076 .048 42
3 998 13.3 24.5 59.2 0.99 0.60 10.0 0.29 0.19 14.5 24.3 14.7 2.44 .071 .047 43
4 1011 10.7 24.0 58.0 0.97 0.58 9.4 0.27 0.18 13.9 23.3 13.9 2.25 .065 .043 42
5 1025 8.0 23.4 56.8 0.95 0.56 8.8 0.25 0.17 13.3 22.2 13.1 2.05 .059 .040 41
6 1041 5.8 23.0 55.8 0.93 0.55 8.3 0.23 0.16 12.8 21.4 12.7 1.90 .053 .037 41
7 1059 0.0 21.5 48.9 0.82 0.44 6.9 0.19 0.13 10.5 17.6 9.5 1.48 .041 .028 27
8 1080 0.0 21.7 49.7 0.83 0.45 7.1 0.19 0.13 10.8 18.0 9.8 1.53 .041 .028 28
9 1106 0.0 22.0 51.0 0.85 0.47 7.3 0.19 0.13 11.2 18.7 10.3 1.61 .042 .029 28
10 1139 0.0 22.3 53.1 0.89 0.50 7.8 0.29 0.17 11.8 19.8 11.2 1.73 .065 .038 28
11 1180 0.0 22.8 55.9 0.93 0.55 8.5 0.29 0.17 12.7 21.2 12.5 1.93 .066 .039 29
12 1233 0.0 23.7 59.7 1.00 0.61 9.4 0.28 0.17 14.1 23.7 14.5 2.23 .066 .040 30
1 1053 12.3 24.1 60.2 1.01 0.61 10.1 0.30 0.19 14.5 24.3 14.7 2.43 .072 .046 43
2 1066 14.8 25.0 61.1 1.02 0.63 10.5 0.31 0.20 15.3 25.5 15.8 2.63 .078 .050 44
3 1081 13.3 25.8 58.9 0.98 0.59 9.8 0.29 0.19 15.2 25.3 15.2 2.53 .075 .049 46
4 1095 10.7 25.3 57.8 0.97 0.58 9.2 0.27 0.18 14.6 24.5 14.7 2.34 .068 .046 45
5 1111 8.0 24.8 56.6 0.95 0.56 8.7 0.25 0.17 14.0 23.6 13.9 2.15 .062 .042 44
6 1128 5.8 24.4 55.7 0.93 0.54 8.2 0.23 0.16 13.6 22.7 13.2 1.99 .056 .039 43
7 1147 0.0 22.9 49.0 0.82 0.44 6.9 0.19 0.13 11.2 18.8 10.1 1.58 .044 .030 29
8 1170 0.0 23.1 49.8 0.83 0.45 7.1 0.19 0.13 11.5 19.2 10.4 1.63 .044 .030 29
9 1199 0.0 23.3 51.2 0.86 0.47 7.3 0.19 0.13 11.9 20.0 11.0 1.71 .044 .030 30
10 1234 0.0 23.7 53.3 0.89 0.51 7.8 0.30 0.18 12.6 21.1 12.1 1.85 .071 .043 30
11 1279 0.0 24.3 56.2 0.94 0.55 8.5 0.29 0.17 13.7 22.8 13.4 2.06 .071 .043 31
12 1336 0.0 25.2 60.0 1.00 0.61 9.5 0.28 0.17 15.1 25.2 15.4 2.40 .071 .043 32
1 1134 12.3 25.3 60.0 1.00 0.61 10.0 0.30 0.19 15.2 25.3 15.4 2.52 .076 .048 45
2 1148 14.8 26.2 60.9 1.02 0.62 10.4 0.31 0.20 16.0 26.7 16.2 2.72 .081 .052 46
3 1164 13.3 27.1 58.7 0.98 0.59 9.7 0.29 0.19 15.9 26.6 16.0 2.62 .079 .051 48
4 1179 10.7 26.6 57.6 0.96 0.57 9.1 0.27 0.18 15.3 25.5 15.2 2.43 .072 .048 47
5 1196 8.0 26.1 56.5 0.94 0.56 8.5 0.25 0.17 14.7 24.5 14.6 2.23 .065 .044 46
6 1214 5.8 25.7 55.7 0.93 0.54 8.1 0.23 0.16 14.3 23.9 13.9 2.08 .059 .041 46
7 1235 0.0 24.2 49.1 0.82 0.44 6.9 0.19 0.14 11.9 19.8 10.6 1.67 .046 .034 31
8 1260 0.0 24.4 49.9 0.83 0.45 7.0 0.19 0.14 12.2 20.3 11.0 1.72 .046 .034 31
9 1291 0.0 24.7 51.3 0.86 0.47 7.3 0.19 0.14 12.7 21.2 11.6 1.81 .047 .035 31
10 1329 0.0 25.1 53.4 0.89 0.51 7.8 0.30 0.18 13.4 22.3 12.8 1.96 .075 .045 32
11 1377 0.0 25.7 56.4 0.94 0.56 8.5 0.30 0.18 14.5 24.2 14.4 2.19 .077 .046 33
12 1438 0.0 26.7 60.2 1.01 0.61 9.5 0.29 0.17 16.1 27.0 16.3 2.54 .077 .046 34

10
Table 8. Nutrient Requirements of Pregnant Replacement Heifers
Months
Since Body
Concep- ADG DMI
Wt.
tion (lb) (lb/day)
(lb)
TDN CP
NEm NEg Ca P
(%DM) (Mcal/lb) (Mcal/lb) (%DM) (%DM) (%DM)
Vit. A
TDN CP
NEm Ca P (1000's
(lb)) (lb)
(Mcal) (lb) (lb) IU)
1 0.72 15.5
563 50.2 7.2
0.46 0.21 0.22 0.16 7.8 1.11
7.1 .034 .025 20
2 0.76 15.9
585 50.3 7.1
0.46 0.21 0.21 0.16 8.0 1.13
7.3 .034 .025 20
3 0.82 16.3
609 50.4 7.1
0.46 0.21 0.21 0.16 8.2 1.16
7.5 .034 .026 21
4 0.91 16.8
636 50.7 7.2
0.46 0.21 0.21 0.16 8.5 1.21
7.7 .035 .027 21
5 1.05 17.3
665 51.3 7.3
0.47 0.22 0.20 0.16 8.9 1.27
8.1 .035 .028 22
6 1.24 17.8
700 52.3 7.6
0.49 0.24 0.20 0.16 9.3 1.36
8.7 .036 .028 23
7 1.50 18.4
741 54.1 8.1
0.51 0.26 0.31 0.23 10.0 1.49
9.4 .057 .042 23
8 1.84 19.1
792 57.1 8.9
0.56 0.30 0.31 0.22 10.9 1.70
10.7 .059 .042 24
9 2.26 19.7
854 62.0 10.3
0.63 0.37 0.30 0.22 12.2 2.02
12.4 .059 .043 25
1 0.79 16.7
625 50.1 7.2
0.46 0.21 0.22 0.17 8.4 1.20
7.7 .037 .028 21
2 0.83 17.2
650 50.2 7.2
0.46 0.21 0.22 0.17 8.6 1.23
7.9 .038 .029 22
3 0.89 17.7
676 50.4 7.2
0.46 0.21 0.22 0.17 8.9 1.27
8.1 .038 .030 22
4 0.98 18.2
704 50.7 7.2
0.46 0.21 0.21 0.17 9.2 1.31
8.4 .038 .031 23
5 1.11 18.7
735 51.3 7.3
0.47 0.22 0.21 0.17 9.6 1.37
8.8 .039 .032 24
6 1.29 19.4
772 52.3 7.6
0.49 0.24 0.20 0.16 10.1 1.47
9.5 .039 .032 25
7 1.54 20.0
815 54.0 8.0
0.52 0.26 0.32 0.23 10.8 1.60
10.4 .064 .046 25
8 1.87 20.7
866 56.8 8.7
0.56 0.30 0.31 0.23 11.8 1.81
11.6 .064 .048 26
9 2.28 21.3
929 61.3 10.0
0.63 0.37 0.31 0.22 13.1 2.13
13.4 .066 .048 27
1 0.86 18.0
687 50.3 7.2
0.46 0.21 0.23 0.18 9.1 1.30
8.3 .041 .032 23
2 0.90 18.5
714 50.4 7.2
0.46 0.21 0.22 0.17 9.3 1.33
8.5 .041 .032 23
3 0.96 19.0
742 50.5 7.2
0.46 0.21 0.22 0.17 9.6 1.36
8.7 .042 .032 24
4 1.05 19.5
773 50.8 7.2
0.47 0.22 0.22 0.17 9.9 1.41
9.2 .043 .033 25
5 1.18 20.1
806 51.3 7.3
0.48 0.22 0.21 0.17 10.3 1.47
9.6 .043 .034 26
6 1.36 20.8
845 52.3 7.5
0.49 0.24 0.21 0.17 10.9 1.57
10.2 .044 .035 26
7 1.61 21.5
890 53.9 7.9
0.52 0.26 0.32 0.23 11.6 1.70
11.2 .069 .049 27
8 1.94 22.3
944 56.5 8.6
0.56 0.30 0.31 0.22 12.6 1.92
12.5 .069 .049 28
9 2.35 22.9
1009 60.6 9.8
0.62 0.36 0.30 0.22 13.9 2.24
14.2 .069 .050 29
1 0.93 19.3
750 50.5 0.46 0.21 7.2 0.23 0.18 9.7 1.39
8.9 .044 .035 25
2 0.97 19.8
779 50.5 0.46 0.21 7.2 0.23 0.18 10.0 1.42
9.1 .046 .036 25
3 1.03 20.3
809 50.7 0.46 0.21 7.2 0.22 0.18 10.3 1.46
9.3 .046 .036 26
4 1.12 20.9
842 50.9 0.47 0.22 7.2 0.22 0.17 10.6 1.51
9.8 .046 .036 27
5 1.25 21.5
878 51.4 0.48 0.23 7.3 0.22 0.17 11.1 1.57
10.3 .047 .037 27
6 1.44 22.2
918 52.3 0.49 0.24 7.5 0.21 0.17 11.6 1.67
10.9 .047 .038 28
7 1.69 23.0
966 53.8 0.51 0.26 7.9 0.31 0.23 12.4 1.81
11.7 .071 .053 29
8 2.01 23.7
1022 56.2 0.55 0.30 8.5 0.31 0.22 13.3 2.02
13.0 .073 .053 30
9 2.42 24.4
1089 59.9 0.61 0.35 9.6 0.30 0.22 14.6 2.35
14.9 .073 .054 31
1 812 1.01 20.5 50.6 0.46 0.21 7.2 0.24 0.18 10.4 9.4 1.48 .049 .037 26
2 843 1.05 21.0 50.7 0.46 0.21 7.2 0.23 0.18 10.6 9.7 1.51 .049 .038 27
3 876 1.10 21.6 50.8 0.47 0.22 7.2 0.23 0.18 11.0 10.2 1.56 .050 .039 27
4 911 1.19 22.2 51.0 0.47 0.22 7.2 0.22 0.18 11.3 10.4 1.61 .050 .040 28
5 949 1.33 22.9 51.5 0.48 0.23 7.3 0.22 0.18 11.8 11.0 1.67 .050 .041 29
6 992 1.51 23.6 52.4 0.49 0.24 7.5 0.22 0.17 12.4 11.6 1.77 .052 .041 30
7 1041 1.76 24.4 53.7 0.51 0.26 7.9 0.31 0.23 13.1 12.4 1.92 .076 .056 31
8 1099 2.09 25.2 56.0 0.55 0.29 8.5 0.30 0.22 14.1 13.9 2.13 .076 .056 32
9 1169 2.49 25.9 59.5 0.60 0.34 9.5 0.30 0.22 15.4 15.5 2.45 .078 .057 33
1 874 1.08 21.7 50.7 0.47 0.22 7.3 0.24 0.18 11.0 10.2 1.57 .052 .039 28
2 907 1.12 22.3 50.8 0.47 0.22 7.2 0.24 0.18 11.3 10.5 1.61 .054 .040 28
3 942 1.18 22.9 50.9 0.47 0.22 7.2 0.23 0.18 11.7 10.8 1.65 .054 .041 29
4 979 1.27 23.5 51.2 0.47 0.22 7.2 0.23 0.18 12.0 11.0 1.70 .054 .042 30
5 1020 1.40 24.2 51.6 0.48 0.23 7.3 0.22 0.18 12.5 11.6 1.77 .054 .044 31
6 1065 1.58 24.9 52.4 0.49 0.24 7.5 0.22 0.18 13.0 12.2 1.86 .055 .045 32
7 1117 1.83 25.8 53.7 0.51 0.26 7.8 0.31 0.23 13.9 13.2 2.01 .080 .059 33
8 1177 2.16 26.6 55.8 0.55 0.29 8.4 0.30 0.22 14.8 14.6 2.23 .080 .059 34
9 1249 2.57 27.4 59.0 0.60 0.34 9.3 0.30 0.22 16.2 16.4 2.56 .082 .060 35

11
Table 9. Nutrient Requirements of Growing Steer and Heifer Calvesa
Body
Wt. ADG DMI
(lb) (lb) (lb/day)
TDN CP
NEm NEg Ca P
Vit. A
TDN NEm NEg CP Ca P (1000's
(lb) (Mcal) (Mcal) (lb) (lb) (lb) IU)
1,100 lb @ Finishing
0.5 7.9 54 9.2
0.50 0.24 0.30 0.16 4.3 3.07 0.42 0.73 .024 .013 8
1.0 8.4 59 11.4
0.57 0.31 0.46 0.23 5.0 3.07 0.90 0.95 .039 .019 8
300
1.5
2.0
8.6
8.6
64
69
13.6
16.2
0.64
0.72
0.37
0.44
0.62
0.79
0.29
0.36
5.5
5.9
3.07
3.07
1.40
1.92
1.17
1.39
.053
.068
.025
.031
9
9
2.5 8.5 75 18.9
0.81 0.52 0.96 0.40 6.4 3.07 2.46 1.61 .082 .034 9
3.0 8.2 83 22.2
0.92 0.62 1.17 0.51 6.8 3.07 3.00 1.83 .096 .042 8
0.5 9.8 54 8.7
0.50 0.24 0.27 0.15 5.3 3.81 0.52 0.85 .026 .015 10
1.0 10.4 59 10.4
0.57 0.31 0.39 0.20 6.1 3.81 1.12 1.08 .040 .021 10
400
1.5
2.0
10.7
10.7
64
69
12.1
14.1
0.64
0.72
0.37
0.44
0.50
0.62
0.24
0.29
6.8
7.4
3.81
3.81
1.74
2.39
1.30
1.51
.053
.066
.026
.031
11
11
2.5 10.6 75 16.3
0.81 0.52 0.75 0.34 8.0 3.81 3.05 1.72 .079 .036 11
3.0 10.2 83 19.0
0.92 0.62 0.90 0.41 8.5 3.81 3.72 1.94 .092 .042 10
0.5 11.6 54 8.4
0.50 0.24 0.25 0.15 6.3 4.50 0.62 0.97 .029 .017 12
1.0 12.2 59 9.8
0.57 0.31 0.34 0.18 7.2 4.50 1.32 1.19 .041 .022 12
500
1.5
2.0
12.6
12.7
64
69
11.2
12.8
0.64
0.72
0.37
0.44
0.42
0.52
0.22
0.25
8.1
8.8
4.50
4.50
2.06
2.82
1.41
1.63
.054
.066
.027
.032
13
13
2.5 12.5 75 14.7
0.81 0.52 0.62 0.30 9.4 4.50 3.60 1.84 .077 .037 13
3.0 12.1 83 16.9
0.92 0.62 0.74 0.35 10.0 4.50 4.40 2.05 .089 .042 12
0.5 13.2 54 0.50 0.24 8.2 0.23 0.14 7.1 5.16 0.71 1.08 .031 .019 13
1.0 14.0 59 0.57 0.31 9.4 0.30 0.17 8.3 5.16 1.51 1.31 .043 .024 14
600
1.5
2.0
14.4
14.6
64
69
0.64
0.72
0.37
0.44
10.6
11.9
0.38
0.44
0.20
0.22
9.2
10.1
5.16
5.16
2.36
3.23
1.53
1.74
.054
.065
.028
.033
14
15
2.5 14.4 75 0.81 0.52 13.6 0.52 0.26 10.8 5.16 4.13 1.95 .075 .037 14
3.0 13.8 83 0.92 0.62 15.7 0.62 0.30 11.5 5.16 5.04 2.17 .086 .041 14
0.5 14.9 54 0.50 0.24 8.0 0.22 0.14 8.0 5.79 0.79 1.19 .033 .021 15
1.0 15.8 59 0.57 0.31 9.0 0.28 0.16 9.3 5.79 1.70 1.42 .044 .026 16
700
1.5
2.0
16.2
16.3
64
69
0.64
0.72
0.37
0.44
10.1
11.4
0.33
0.39
0.19
0.21
10.4
11.2
5.79
5.79
2.65
3.63
1.64
1.85
.054
.064
.030
.034
16
16
2.5 16.1 75 0.81 0.52 12.8 0.46 0.24 12.1 5.79 4.64 2.06 .074 .038 16
3.0 15.5 83 0.92 0.62 14.6 0.54 0.27 12.9 5.79 5.66 2.27 .084 .042 16
0.5 7.8 54 0.49 0.24 9.4 0.31 0.17 4.2 3.07 0.39 0.73 .025 .013 8
1.0 8.3 58 0.56 0.30 11.5 0.48 0.23 4.8 3.07 0.84 0.95 .040 .019 8
300
1.5
2.0
8.6
8.6
63
68
0.63
0.70
0.36
0.42
13.7
16.2
0.63
0.80
0.29
0.36
5.4
5.8
3.07
3.07
1.31
1.80
1.17
1.40
.054
.069
.025
.031
9
9
2.5 8.6 73 0.78 0.50 18.7 0.96 0.43 6.3 3.07 2.30 1.61 .083 .037 9
3.0 8.3 80 0.88 0.58 22.0 1.18 0.52 6.6 3.07 2.81 1.83 .098 .043 8
0.5 9.7 54 0.49 0.24 8.8 0.28 0.16 5.2 3.81 0.49 0.85 .027 .015 10
1.0 10.3 58 0.56 0.30 10.4 0.39 0.20 6.0 3.81 1.04 1.07 .041 .021 10
400
1.5
2.0
10.6
10.7
63
68
0.63
0.70
0.36
0.42
12.2
14.1
0.51
0.63
0.25
0.30
6.7
7.3
3.81
3.81
1.63
2.23
1.30
1.51
.054
.068
.026
.032
11
11
2.5 10.7 73 0.78 0.50 16.1 0.76 0.35 7.8 3.81 2.85 1.72 .081 .037 11
3.0 10.4 80 0.88 0.58 18.7 0.90 0.41 8.3 3.81 3.49 1.94 .094 .043 10
0.5 11.5 54 0.49 0.24 8.4 0.25 0.15 6.2 4.50 0.58 0.97 .029 .017 12
1.0 12.2 58 0.56 0.30 9.8 0.34 0.18 7.1 4.50 1.23 1.19 .042 .022 12
500
1.5
2.0
12.6
12.6
63
68
0.63
0.70
0.36
0.42
11.2
12.9
0.43
0.53
0.22
0.26
7.9
8.6
4.50
4.50
1.93
2.64
1.41
1.63
.055
.067
.028
.033
13
13
2.5 12.6 73 0.78 0.50 14.6 0.63 0.30 9.2 4.50 3.37 1.84 .079 .038 13
3.0 12.2 80 0.88 0.58 16.8 0.75 0.35 9.8 4.50 4.12 2.05 .092 .043 12
0.5 13.2 54 0.49 0.24 8.2 0.24 0.15 7.1 5.16 0.66 1.08 .031 .019 13
1.0 14.0 58 0.56 0.30 9.3 0.31 0.17 8.1 5.16 1.42 1.31 .043 .024 14
600
1.5
2.0
14.4
14.4
63
68
0.63
0.70
0.36
0.42
10.6
12.1
0.38
0.46
0.20
0.23
9.1
9.8
5.16
5.16
2.21
3.03
1.52
1.74
.055
.067
.029
.034
14
14
2.5 14.4 73 0.78 0.50 13.5 0.54 0.26 10.5 5.16 3.87 1.95 .078 .038 14
3.0 14.0 80 0.88 0.58 15.4 0.64 0.31 11.2 5.16 4.73 2.16 .089 .043 14
0.5 14.8 54 0.49 0.24 8.0 0.23 0.14 8.0 5.79 0.74 1.18 .034 .021 15
1.0 15.7 58 0.56 0.30 9.0 0.29 0.17 9.1 5.79 1.59 1.42 .045 .026 16
700
1.5
2.0
16.2
16.3
63
68
0.63
0.70
0.36
0.42
10.1
11.3
0.34
0.41
0.19
0.21
10.2
11.1
5.79
5.79
2.48
3.40
1.64
1.85
.056
.067
.030
.035
16
16
2.5 16.2 73 0.78 0.50 12.7 0.47 0.24 11.8 5.79 4.34 2.05 .077 .039 16
3.0 15.8 80 0.88 0.58 14.4 0.55 0.27 12.6 5.79 5.30 2.27 .087 .043 16
a1,100 or 1,200 lb @ finishing (28 percent body fat) or maturity (replacement heifers).

12
Table 10. Nutrient Requirements of Bull Calves (less than 12 months of age, 2,000 lb mature weight)
Body
Wt. ADG DMI
(lb) (lb) (lb/day)
TDN CP
NEm NEg Ca P
Vit. A
0.5 8.0 55 9.1
0.51 0.25 0.31 0.16 4.4 3.53 0.39 0.73 .025 .013 8
1.0 8.3 58 11.4
0.56 0.30 0.48 0.23 4.8 3.53 0.84 0.95 .040 .019 8
300
1.5
2.0
8.5
8.6
61
65
13.8
16.3
0.60
0.65
0.34
0.38
0.64
0.80
0.29
0.36
5.2
5.6
3.53
3.53
1.31
1.80
1.17
1.40
.054
.069
.025
.031
9
9
2.5 8.7 68 18.5
0.71 0.43 0.95 0.43 5.9 3.53 2.30 1.61 .083 .037 9
3.0 8.6 72 21.3
0.76 0.48 1.14 0.50 6.2 3.53 2.81 1.83 .098 .043 9
0.5 9.9 55 8.6
0.51 0.25 0.27 0.15 5.4 4.38 0.49 0.85 .027 .015 10
1.0 10.3 58 10.5
0.56 0.30 0.40 0.20 6.0 4.38 1.04 1.08 .041 .021 10
400
1.5
2.0
10.5
10.7
61
65
12.4
14.1
0.60
0.65
0.34
0.38
0.51
0.64
0.25
0.30
6.4
7.0
4.38
4.38
1.63
2.23
1.30
1.51
.054
.068
.026
.032
11
11
2.5 10.7 68 16.2
0.71 0.43 0.76 0.35 7.3 4.38 2.85 1.73 .081 .037 11
3.0 10.7 72 18.1
0.76 0.48 0.88 0.40 7.7 4.38 3.49 1.94 .094 .043 11
0.5 11.7 55 8.3
0.51 0.25 0.25 0.15 6.4 5.18 0.58 0.97 .029 .017 12
1.0 12.2 58 9.8
0.56 0.30 0.34 0.18 7.1 5.18 1.23 1.19 .042 .022 12
500
1.5
2.0
12.5
12.6
61
65
11.3
12.9
0.60
0.65
0.34
0.38
0.44
0.53
0.22
0.26
7.6
8.2
5.18
5.18
1.93
2.64
1.41
1.63
.055
.067
.028
.033
13
13
2.5 12.7 68 14.5
0.71 0.43 0.63 0.29 8.6 5.18 3.37 1.84 .080 .037 13
3.0 12.6 72 16.3
0.76 0.48 0.73 0.34 9.1 5.18 4.12 2.05 .092 .043 13
0.5 13.4 55 0.51 0.25 8.1 0.24 0.14 7.4 5.93 0.66 1.08 .032 .019 13
1.0 13.9 58 0.56 0.30 9.4 0.32 0.17 8.1 5.93 1.42 1.31 .044 .024 14
600
1.5
2.0
14.3
14.5
61
65
0.60
0.65
0.34
0.38
10.7
12.0
0.38
0.46
0.20
0.23
8.7
9.4
5.93
5.93
2.21
3.03
1.53
1.74
.055
.067
.029
.034
14
15
2.5 14.5 68 0.71 0.43 13.4 0.54 0.26 9.9 5.93 3.87 1.95 .078 .038 15
3.0 14.5 72 0.76 0.48 14.9 0.61 0.30 10.4 5.93 4.73 2.16 .089 .043 15
0.5 15.1 55 0.51 0.25 7.9 0.23 0.14 8.3 6.66 0.74 1.19 .034 .021 15
1.0 15.6 58 0.56 0.30 9.1 0.29 0.17 9.0 6.66 1.59 1.42 .045 .026 16
700
1.5
2.0
16.0
16.3
61
65
0.60
0.65
0.34
0.38
10.3
11.4
0.35
0.40
0.19
0.21
9.8
10.6
6.66
6.66
2.48
3.40
1.64
1.86
.056
.066
.030
.035
16
16
2.5 16.3 68 0.71 0.43 12.7 0.47 0.24 11.1 6.66 4.34 2.07 .077 .039 16
3.0 16.3 72 0.76 0.48 13.9 0.53 0.26 11.7 6.66 5.30 2.27 .087 .043 16
0.5 16.7 55 0.51 0.25 7.7 0.22 0.14 9.2 7.36 0.82 1.28 .036 .023 17
1.0 17.3 58 0.56 0.30 8.7 0.27 0.16 10.0 7.36 1.76 1.51 .047 .028 17
800
1.5
2.0
17.7
18.0
61
65
0.60
0.65
0.34
0.38
9.7
10.7
0.32
0.37
0.18
0.19
10.8
11.7
7.36
7.36
2.74
3.76
1.72
1.93
.057
.066
.032
.035
18
18
2.5 18.1 68 0.71 0.43 11.8 0.42 0.22 12.3 7.36 4.80 2.13 .076 .039 18
3.0 18.0 72 0.76 0.48 12.9 0.47 0.24 13.0 7.36 5.86 2.33 .085 .043 18
0.5 18.2 55 0.51 0.25 7.5 0.21 0.14 10.0 8.04 0.90 1.37 .039 .026 18
1.0 18.9 58 0.56 0.30 8.3 0.25 0.15 11.0 8.04 1.92 1.57 .048 .029 19
900
1.5
2.0
19.4
19.6
61
65
0.60
0.65
0.34
0.38
9.1
9.9
0.29
0.34
0.17
0.19
11.8
12.7
8.04
8.04
2.99
4.11
1.77
1.95
.057
.066
.033
.037
19
20
2.5 19.7 68 0.71 0.43 10.9 0.38 0.20 13.4 8.04 5.24 2.14 .075 .040 20
3.0 19.6 72 0.76 0.48 11.9 0.42 0.22 14.1 8.04 6.40 2.33 .083 .043 20

13
Table 11. Nutrient Requirements of Growing Yearlings – Bullsa, Steersb and Heifersb
Body
Wt. ADG DMI
(lb) (lb) (lb/day)
TDN CP
NEm NEg Ca P
Vit. A
0.64 15.2 50 7.1
0.45 0.20 0.21 0.13 7.6 4.83 0.93 1.08 .032 .020 15
1.77 16.1 60 9.8
0.61 0.35 0.36 0.19 9.7 4.83 2.85 1.58 .058 .031 16
550 2.68 15.7 70 12.4
0.76 0.48 0.49 0.24 11.0 4.83 4.48 1.95 .077 .038 16
3.34 14.8 80 14.9
0.90 0.61 0.61 0.29 11.8 4.83 5.71 2.21 .090 .043 15
3.75 13.7 90 17.3
1.04 0.72 0.73 0.34 12.3 4.83 6.48 2.37 .100 .047 14
0.64 16.2 50 7.0
0.45 0.20 0.21 0.13 8.1 5.16 0.99 1.13 .034 .021 16
1.77 17.2 60 9.5
0.61 0.35 0.34 0.18 10.3 5.16 3.04 1.63 .058 .031 17
600 2.68 16.8 70 11.9
0.76 0.48 0.45 0.23 11.8 5.16 4.79 2.00 .076 .039 17
3.34 15.8 80 14.3
0.90 0.61 0.56 0.27 12.6 5.16 6.10 2.26 .088 .043 16
3.75 14.6 90 16.5
1.04 0.72 0.66 0.32 13.1 5.16 6.92 2.41 .096 .047 15
0.64 17.3 50 6.9
0.45 0.20 0.20 0.12 8.7 5.48 1.06 1.19 .035 .021 17
1.77 18.2 60 9.2
0.61 0.35 0.32 0.17 10.9 5.48 3.22 1.67 .058 .031 18
650 2.68 17.8 70 11.5
0.76 0.48 0.42 0.21 12.5 5.48 5.08 2.05 .075 .037 18
3.34 16.8 80 13.7
0.90 0.61 0.52 0.26 13.4 5.48 6.47 2.30 .087 .044 17
3.75 15.5 90 15.9
1.04 0.72 0.61 0.30 14.0 5.48 7.35 2.46 .095 .047 16
0.64 18.2 50 0.45 0.20 6.8 0.19 0.12 9.1 5.79 1.12 1.24 .035 .022 18
1.77 19.3 60 0.61 0.35 8.8 0.30 0.16 11.6 5.79 3.41 1.70 .058 .031 19
700 2.68 18.8 70 0.76 0.48 10.9 0.39 0.20 13.2 5.79 5.37 2.05 .073 .038 19
3.34 17.8 80 0.90 0.61 13.0 0.48 0.24 14.2 5.79 6.84 2.31 .085 .043 18
3.75 16.4 90 1.04 0.72 15.0 0.56 0.28 14.8 5.79 7.77 2.46 .092 .046 16
0.64 19.2 50 0.45 0.20 6.7 0.19 0.12 9.6 6.10 1.18 1.29 .036 .023 19
1.77 20.3 60 0.61 0.35 8.5 0.28 0.16 12.2 6.10 3.59 1.73 .057 .032 20
750 2.68 19.8 70 0.76 0.48 10.3 0.37 0.19 13.9 6.10 5.66 2.04 .073 .038 20
3.34 18.7 80 0.90 0.61 12.2 0.45 0.23 15.0 6.10 7.21 2.28 .084 .043 19
3.75 17.3 90 1.04 0.72 14.0 0.52 0.26 15.6 6.10 8.18 2.42 .090 .045 17
0.64 20.2 50 0.45 0.20 6.5 0.19 0.12 10.1 6.40 1.23 1.31 .038 .024 20
1.77 21.3 60 0.61 0.35 8.1 0.27 0.15 12.8 6.40 3.77 1.73 .058 .032 21
800 2.68 20.8 70 0.76 0.48 9.8 0.34 0.18 14.6 6.40 5.94 2.04 .071 .037 21
3.34 19.6 80 0.90 0.61 11.5 0.42 0.22 15.7 6.40 7.56 2.25 .082 .043 20
3.75 18.1 90 1.04 0.72 13.2 0.48 0.25 16.3 6.40 8.59 2.39 .087 .045 18
0.68 16.3 50 0.45 0.20 7.2 0.22 0.13 8.2 5.19 1.00 1.17 .036 .021 16
1.88 17.3 60 0.61 0.35 10.0 0.36 0.19 10.4 5.19 3.04 1.73 .062 .033 17
605 2.86 16.9 70 0.76 0.48 12.7 0.49 0.24 11.8 5.19 4.82 2.15 .083 .041 17
3.56 15.9 80 0.90 0.61 15.3 0.61 0.29 12.7 5.19 6.12 2.43 .097 .046 16
4.00 14.7 90 1.04 0.72 17.8 0.72 0.34 13.2 5.19 6.96 2.62 .106 .050 15
0.68 17.5 50 0.45 0.20 7.1 0.21 0.13 8.8 5.54 1.06 1.24 .037 .023 18
1.88 18.4 60 0.61 0.35 9.7 0.34 0.18 11.0 5.54 3.24 1.78 .063 .033 18
660 2.86 18.0 70 0.76 0.48 12.3 0.45 0.23 12.6 5.54 5.14 2.21 .081 .041 18
3.56 17.0 80 0.90 0.61 14.7 0.56 0.27 13.6 5.54 6.54 2.50 .095 .046 17
4.00 15.7 90 1.04 0.72 17.1 0.66 0.32 14.1 5.54 7.43 2.68 .104 .050 16
0.68 18.5 50 0.45 0.20 6.9 0.20 0.13 9.3 5.89 1.13 1.28 .037 .024 19
1.88 19.6 60 0.61 0.35 9.2 0.32 0.17 11.8 5.89 3.45 1.80 .063 .033 20
715 2.86 19.1 70 0.76 0.48 11.5 0.42 0.21 13.4 5.89 5.46 2.20 .080 .040 19
3.56 18.1 80 0.90 0.61 13.7 0.52 0.26 14.5 5.89 6.94 2.48 .094 .047 18
4.00 16.7 90 1.04 0.72 15.9 0.61 0.30 15.0 5.89 7.89 2.66 .102 .050 17
0.68 19.6 50 0.45 0.20 6.8 0.20 0.12 9.8 6.22 1.19 .039
1.33 .024 20
1.88 20.7 60 0.61 0.35 8.8 0.30 0.16 12.4 6.22 3.64 .062
1.82 .033 21
770 2.86 20.2 70 0.76 0.48 10.9 0.39 0.20 14.1 6.22 5.77 .079
2.20 .040 20
3.56 19.1 80 0.90 0.61 12.9 0.48 0.24 15.3 6.22 7.34 .092
2.46 .046 19
4.00 17.6 90 1.04 0.72 14.8 0.56 0.28 15.8 6.22 8.34 .099
2.60 .049 18
0.68 20.6 50 0.45 0.20 6.6 0.19 0.12 10.3 6.55 1.26 1.36 .039 .025 21
1.88 21.8 60 0.61 0.35 8.4 0.28 0.16 13.1 6.55 3.84 1.83 .061 .035 22
825 2.86 21.3 70 0.76 0.48 10.3 0.37 0.19 14.9 6.55 6.08 2.19 .079 .040 21
3.56 20.1 80 0.90 0.61 12.1 0.44 0.23 16.1 6.55 7.73 2.43 .088 .046 20
4.00 18.6 90 1.04 0.72 13.9 0.52 0.26 16.7 6.55 8.78 2.59 .097 .048 19
0.68 21.7 50 0.45 0.20 6.5 0.19 0.12 10.9 6.88 1.32 1.41 .041 .026 22
1.88 22.9 60 0.61 0.35 8.1 0.27 0.15 13.7 6.88 4.03 1.85 .062 .034 23
880 2.86 22.4 70 0.76 0.48 9.8 0.34 0.18 15.7 6.88 6.38 2.20 .076 .040 22
3.56 21.1 80 0.90 0.61 11.4 0.42 0.22 16.9 6.88 8.11 2.41 .089 .046 21
4.00 19.5 90 1.04 0.72 13.1 0.48 0.25 17.6 6.88 9.22 2.55 .094 .049 20
aUse expected mature weight of bull times 0.60 to choose weight to use for growing yearling bulls.
b1,000 to 1,400 lb @ finishing (28 percent body fat) or maturity (replacement heifers).

14
Table 11 (Continued). Nutrient Requirements of Growing Yearlings – Bullsa, Steersb and Heifersb
Body
Wt. ADG DMI
(lb) (lb) (lb/day)
TDN NEm NEg CP Ca P
(%DM)
(%DM) (Mcal/lb) (Mcal/lb) (%DM) (%DM)
Vit. A
0.72 17.5 50 0.45 0.20 7.3 0.22 0.13 8.8 5.54 1.06 1.28 .039 .023 18
2.00 18.4 60 0.61 0.35 10.2 0.36 0.19 11.0 5.54 3.25 1.88 .066 .035 18
660 3.04 18.0 70 0.76 0.48 13.0 0.49 0.24 12.6 5.54 5.15 2.34 .088 .043 18
3.78 17.0 80 0.90 0.61 15.8 0.61 0.29 13.6 5.54 6.54 2.69 .104 .049 17
4.25 15.7 90 1.04 0.72 18.4 0.72 0.34 14.1 5.54 7.44 2.89 .113 .053 16
0.72 18.6 50 0.45 0.20 7.1 0.21 0.13 9.3 5.92 1.13 1.32 .039 .024 19
2.00 19.7 60 0.61 0.35 9.7 0.34 0.18 11.8 5.92 3.47 1.91 .067 .035 20
720 3.04 19.2 70 0.76 0.48 12.2 0.45 0.23 13.4 5.92 5.50 2.34 .086 .044 19
3.78 18.2 80 0.90 0.61 14.6 0.56 0.27 14.6 5.92 6.98 2.66 .102 .049 18
4.25 16.8 90 1.04 0.72 17.0 0.66 0.32 15.1 5.92 7.94 2.86 .111 .054 17
0.72 19.8 50 0.45 0.20 6.9 0.20 0.13 9.9 6.28 1.20 1.37 .040 .026 20
2.00 20.9 60 0.61 0.35 9.2 0.32 0.17 12.5 6.28 3.69 1.92 .067 .036 21
780 3.04 20.4 70 0.76 0.48 11.4 0.42 0.21 14.3 6.28 5.84 2.33 .086 .043 20
3.78 19.3 80 0.90 0.61 13.6 0.52 0.26 15.4 6.28 7.41 2.62 .100 .050 19
4.25 17.8 90 1.04 0.72 15.8 0.61 0.30 16.0 6.28 8.43 2.81 .109 .053 18
0.72 20.9 50 0.45 0.20 6.8 0.20 0.13 10.5 6.64 1.27 1.42 .042 .027 21
2.00 22.1 60 0.61 0.35 8.8 0.30 0.16 13.3 6.64 3.90 1.94 .071 .035 22
840 3.04 21.6 70 0.76 0.48 10.8 0.39 0.20 15.1 6.64 6.17 2.33 .091 .043 22
3.78 20.4 80 0.90 0.61 12.8 0.48 0.24 16.3 6.64 7.84 2.61 .106 .049 20
4.25 18.8 90 1.04 0.72 14.7 0.56 0.28 16.9 6.64 8.91 2.76 .115 .053 19
0.72 22.0 50 0.45 0.20 6.6 0.19 0.12 11.0 6.99 1.34 1.45 .042 .026 22
2.00 23.3 60 0.61 0.35 8.4 0.28 0.16 14.0 6.99 4.11 1.96 .065 .037 23
900 3.04 22.7 70 0.76 0.48 10.2 0.37 0.19 15.9 6.99 6.50 2.32 .084 .043 23
3.78 21.5 80 0.90 0.61 12.0 0.44 0.23 17.2 6.99 8.25 2.58 .095 .049 22
4.25 19.8 90 1.04 0.72 13.8 0.52 0.26 17.8 6.99 9.39 2.73 .103 .051 20
0.72 23.1 50 0.45 0.20 6.5 0.19 0.12 11.6 7.34 1.40 1.50 .044 .028 23
2.00 24.4 60 0.61 0.35 8.1 0.27 0.15 14.6 7.34 4.31 1.98 .066 .037 24
960 3.04 23.9 70 0.76 0.48 9.7 0.34 0.19 16.7 7.34 6.82 2.32 .081 .045 24
3.78 22.5 80 0.90 0.61 11.3 0.41 0.22 18.0 7.34 8.66 2.54 .092 .050 23
4.25 20.8 90 1.04 0.72 13.0 0.48 0.25 18.7 7.34 9.85 2.70 .100 .052 21
1,300 Lb @ Finishing
0.76 18.5 50 0.45 0.20 7.3 0.22 0.13 9.3 5.89 1.13 1.35 .041 .024 19
2.11 19.6 60 0.61 0.35 10.2 0.36 0.19 11.8 5.89 3.45 2.00 .071 .037 20
715 3.21 19.1 70 0.76 0.48 13.0 0.49 0.24 13.4 5.89 5.47 2.48 .094 .046 19
3.99 18.1 80 0.90 0.61 15.7 0.61 0.29 14.5 5.89 6.94 2.84 .110 .052 18
4.48 16.7 90 1.04 0.72 18.3 0.72 0.34 15.0 5.89 7.88 3.06 .120 .057 17
0.76 19.8 50 0.45 0.20 7.1 0.21 0.13 9.9 6.28 1.20 1.41 .042 .026 20
2.11 20.9 60 0.61 0.35 9.6 0.34 0.18 12.5 6.28 3.68 2.01 .071 .038 21
780 3.21 20.4 70 0.76 0.48 12.1 0.45 0.23 14.3 6.28 5.84 2.47 .092 .047 20
3.99 19.3 80 0.90 0.61 14.5 0.56 0.27 15.4 6.28 7.41 2.80 .108 .052 19
4.48 17.8 90 1.04 0.72 16.9 0.66 0.32 16.0 6.28 8.41 3.01 .117 .057 18
0.76 21.0 50 0.45 0.20 6.9 0.21 0.13 10.5 6.67 1.28 1.45 .044 .027 21
2.11 22.2 60 0.61 0.35 9.1 0.32 0.17 13.3 6.67 3.91 2.02 .071 .038 22
845 3.21 21.7 70 0.76 0.48 11.4 0.42 0.22 15.2 6.67 6.20 2.47 .091 .048 22
3.99 20.5 80 0.90 0.61 13.6 0.51 0.26 16.4 6.67 7.87 2.79 .105 .053 21
4.48 18.9 90 1.04 0.72 15.7 0.60 0.30 17.0 6.67 8.93 2.97 .113 .057 19
0.76 22.2 50 0.45 0.20 6.7 0.20 0.13 11.1 7.05 1.35 1.49 .044 .029 22
2.11 23.5 60 0.61 0.35 8.7 0.30 0.17 14.1 7.05 4.13 2.04 .071 .040 24
910 3.21 22.9 70 0.76 0.48 10.7 0.39 0.20 16.0 7.05 6.55 2.45 .089 .046 23
3.99 21.6 80 0.90 0.61 12.7 0.48 0.24 17.3 7.05 8.32 2.74 .104 .052 22
4.48 20.0 90 1.04 0.72 14.6 0.56 0.28 18.0 7.05 9.44 2.92 .112 .056 20
0.76 23.4 50 0.45 0.20 6.6 0.20 0.13 11.7 7.43 1.42 1.54 .047 .030 23
2.11 24.7 60 0.61 0.35 8.3 0.28 0.16 14.8 7.43 4.35 2.05 .069 .040 25
975 3.21 24.1 70 0.76 0.48 10.2 0.37 0.19 16.9 7.43 6.90 2.46 .089 .046 24
3.99 22.8 80 0.90 0.61 11.9 0.44 0.23 18.2 7.43 8.76 2.71 .100 .052 23
4.48 21.0 90 1.04 0.72 13.7 0.52 0.26 18.9 7.43 9.94 2.88 .109 .055 21
0.76 24.5 50 0.45 0.20 6.5 0.19 0.13 12.3 7.80 1.49 1.59 .047 .032 25
2.11 25.9 60 0.61 0.35 8.0 0.27 0.15 15.5 7.80 4.57 2.07 .070 .039 26
1040 3.21 25.3 70 0.76 0.48 9.6 0.34 0.19 17.7 7.80 7.24 2.43 .086 .048 25
3.99 23.9 80 0.90 0.61 11.3 0.41 0.22 19.1 7.80 9.19 2.70 .098 .053 24
4.48 22.1 90 1.04 0.72 12.9 0.48 0.25 19.9 7.80 10.44 2.85 .106 .055 22
aUse expected mature weight of bull times 0.60 to choose weight to use for growing bull calves.

15
Table 11 (Continued). Nutrient Requirements of Growing Yearlings – Bullsa, Steersb and Heifersb
Body Vit. A
Wt. ADG DMI TDN NEm NEg CP Ca P TDN NEm NEg CP Ca P (1000's
(lb) (lb) (lb/day) (%DM)
(%DM) (Mcal/lb) (Mcal/lb) (%DM) (%DM) (lb) (Mcal) (Mcal) (lb) (lb) (lb) IU)
0.80 19.6 50 0.45 0.20 7.3 0.22 0.13 9.8 6.22 1.19 1.43 .043 .025 20
2.22 20.7 60 0.61 0.35 10.1 0.36 0.19 12.4 6.22 3.65 2.09 .075 .039 21
770 3.38 20.2 70 0.76 0.48 12.9 0.49 0.24 14.1 6.22 5.79 2.61 .099 .048 20
4.20 19.1 80 0.90 0.61 15.6 0.61 0.29 15.3 6.22 7.34 2.98 .117 .055 19
4.72 17.6 90 1.04 0.72 18.1 0.72 0.34 15.8 6.22 8.34 3.19 .127 .060 18
0.80 20.9 50 0.45 0.20 7.1 0.21 0.13 10.5 6.64 1.27 1.48 .044 .027 21
2.22 22.1 60 0.61 0.35 9.6 0.34 0.18 13.3 6.64 3.89 2.12 .075 .040 22
840 3.38 21.6 70 0.76 0.48 12.1 0.45 0.23 15.1 6.64 6.18 2.61 .097 .050 22
4.20 20.4 80 0.90 0.61 14.5 0.56 0.27 16.3 6.64 7.84 2.96 .114 .055 20
4.72 18.8 90 1.04 0.72 16.8 0.65 0.32 16.9 6.64 8.91 3.16 .122 .060 19
0.80 22.2 50 0.45 0.20 6.9 0.21 0.13 11.1 7.05 1.35 1.53 .047 .029 22
2.22 23.5 60 0.61 0.35 9.1 0.32 0.17 14.1 7.05 4.13 2.14 .075 .040 24
910 3.38 22.9 70 0.76 0.48 11.3 0.42 0.22 16.0 7.05 6.56 2.59 .096 .050 23
4.20 21.6 80 0.90 0.61 13.5 0.51 0.26 17.3 7.05 8.32 2.92 .110 .056 22
4.72 20.0 90 1.04 0.72 15.6 0.60 0.30 18.0 7.05 9.46 3.12 .120 .060 20
0.80 23.5 50 0.45 0.20 6.7 0.20 0.13 11.8 7.46 1.43 1.57 .047 .031 24
2.22 24.8 60 0.61 0.35 8.7 0.30 0.17 14.9 7.46 4.37 2.16 .074 .042 25
980 3.38 24.2 70 0.76 0.48 10.7 0.39 0.20 16.9 7.46 6.93 2.59 .094 .048 24
4.20 22.9 80 0.90 0.61 12.6 0.47 0.24 18.3 7.46 8.80 2.89 .108 .055 23
4.72 21.1 90 1.04 0.72 14.5 0.56 0.28 19.0 7.46 10.00 3.06 .118 .059 21
0.80 24.7 50 0.45 0.20 6.6 0.20 0.13 12.4 7.85 1.50 1.63 .049 .032 25
2.22 26.1 60 0.61 0.35 8.3 0.28 0.16 15.7 7.85 4.60 2.17 .073 .042 26
1050 3.38 25.5 70 0.76 0.48 10.1 0.37 0.20 17.9 7.85 7.30 2.58 .094 .051 26
4.20 24.1 80 0.90 0.61 11.9 0.44 0.23 19.3 7.85 9.26 2.87 .106 .055 24
4.72 22.2 90 1.04 0.72 13.6 0.51 0.26 20.0 7.85 10.53 3.02 .113 .058 22
0.80 25.9 50 0.45 0.20 6.5 0.19 0.13 13.0 8.24 1.58 1.68 .049 .034 26
2.22 27.4 60 0.61 0.35 8.0 0.27 0.16 16.4 8.24 4.83 2.19 .074 .044 27
1120 3.38 26.8 70 0.76 0.48 9.6 0.34 0.19 18.8 8.24 7.66 2.57 .091 .051 27
4.20 25.3 80 0.90 0.61 11.2 0.41 0.22 20.2 8.24 9.72 2.83 .104 .056 25
4.72 23.3 90 1.04 0.72 12.8 0.48 0.25 21.0 8.24 11.05 2.98 .112 .058 23
aUse expected mature weight of bull times 0.60 to choose weight to use for growing yearling bulls.
Table 12. Nutrient Requirements of Yearling and Breeding Bullsa, b
Body
Wt. ADG DMI
(lb) (lb) (lb/day)
Diet Nutrient Density Daily Nutrients Per Animal
TDN
(%DM)
NEm NEg CP Ca
P
(%DM)
TDN
(lb)
NEm NEg CP Ca
(Mcal) (Mcal) (lb) (lb)
P
(lb)
0.44 22.0 50 0.45 0.20 6.0 0.16 0.11 11.0 8.04 0.88 1.32 .036 .025
900
1.55
2.46
23.3
22.7
60
70
0.61
0.76
0.35
0.48
7.3
8.8
0.23
0.30
0.14
0.16
14.0
15.9
8.04
8.04
3.51
5.82
1.71
1.99
.054
.068
.032
.037
3.12 21.5 80 0.90 0.61 10.2 0.36 0.19 17.2 8.04 7.55 2.19 .077 .041
0.44 23.8 50 0.45 0.20 5.9 0.16 0.11 11.9 8.71 0.95 1.40 .039 .027
1,000
1.55
2.46
25.2
24.6
60
70
0.61
0.76
0.35
0.48
6.9
8.1
0.22
0.27
0.13
0.15
15.1
17.2
8.71
8.71
3.79
6.30
1.74
1.99
.055
.067
.033
.038
3.12 23.2 80 0.90 0.61 9.3 0.32 0.18 18.6 8.71 8.17 2.16 .074 .041
0.44 25.6 50 0.45 0.20 5.8 0.16 0.11 12.8 9.35 1.02 1.48 .041 .029
1,100
1.55
2.46
27.0
26.4
60
70
0.61
0.76
0.35
0.48
6.6
7.5
0.20
0.25
0.13
0.14
16.2
18.5
9.35
9.35
4.08
6.76
1.78
1.99
.055
.065
.034
.038
3.12 24.9 80 0.90 0.61 8.6 0.29 0.16 19.9 9.35 8.78 2.13 .072 .041
0.44 27.3 50 0.45 0.20 5.7 0.16 0.11 13.7 9.98 1.09 1.55 .044 .031
1,200
1.55
2.46
28.9
28.2
60
70
0.61
0.76
0.35
0.48
6.3
7.1
0.19
0.23
0.12
0.14
17.3
19.7
9.98
9.98
4.35
7.22
1.81
1.99
.056
.064
.036
.039
3.12 26.6 80 0.90 0.61 7.9 0.26 0.15 21.3 9.98 9.37 2.10 .069 .041
1,300
0.44
1.55
29.0
30.7
50
60
0.45
0.61
0.20
0.35
5.6
6.0
0.16
0.19
0.11
0.12
14.5
18.4
10.60
10.60
1.16
4.62
1.63
1.85
.046
.057
.033
.037
1,400
0.44
1.55
30.7
32.4
50
60
0.45
0.61
0.20
0.35
5.5
5.8
0.16
0.18
0.11
0.12
15.4
19.4
11.20
11.20
1.23
4.88
1.70
1.88
.049
.057
.035
.039
1,500
0.44
1.55
32.3
34.1
50
60
0.45
0.61
0.20
0.35
5.5
5.6
0.16
0.17
0.11
0.12
16.2
20.5
11.80
11.80
1.29
5.14
1.77
1.92
.051
.058
.037
.040
1,600
0.44
1.55
33.9
35.8
50
60
0.45
0.61
0.20
0.35
5.4
5.4
0.16
0.16
0.12
0.11
17.0
21.5
12.38
12.38
1.36
5.40
1.84
1.95
.054
.059
.039
.041
1,700
0.00
0.44
32.9
35.5
46
50
0.39
0.45
0.00
0.20
5.6
5.4
0.16
0.16
0.12
0.12
15.1
17.8
12.96
12.96
0.00
1.42
1.83
1.91
.052
.056
.040
.041

16
Table 12 (Continued). Nutrient Requirements of Yearling and Breeding Bullsa, b
Diet Nutrient Density Daily Nutrients Per Animal
Body
Wt. ADG DMI TDN NEm NEg CP Ca P TDN NEm NEg CP Ca P
(lb) (lb) (lb/day) (%DM) (Mcal/lb) (Mcal/lb) (%DM) (%DM) (%DM) (lb) (Mcal) (Mcal) (lb) (lb) (lb)
0.49 23.8 50 0.45 0.20 6.1 0.17 0.12 11.9 8.71 0.95 1.44 .041 .028
1,000
1.73
2.75
25.2
24.6
60
70
0.61
0.76
0.35
0.48
7.5
9.1
0.25
0.32
0.14
0.17
15.1
17.2
8.71
8.71
3.79
6.30
1.89
2.23
.062
.078
.036
.043
3.49 23.2 80 0.90 0.61 10.5 0.38 0.20 18.6 8.71 8.18 2.46 .088 .047
0.49 25.6 50 0.45 0.20 5.9 0.17 0.12 12.8 9.35 1.02 1.52 .043 .030
1,100
1.73
2.75
27.0
26.4
60
70
0.61
0.76
0.35
0.48
7.1
8.4
0.23
0.29
0.14
0.16
16.2
18.5
9.35
9.35
4.07
6.77
1.92
2.22
.062
.076
.037
.043
3.49 24.9 80 0.90 0.61 9.8 0.35 0.19 19.9 9.35 8.79 2.43 .086 .047
0.49 27.3 50 0.45 0.20 5.8 0.17 0.12 13.7 9.98 1.09 1.59 .046 .032
1,200
1.73
2.75
28.9
28.2
60
70
0.61
0.76
0.35
0.48
6.8
7.9
0.22
0.27
0.13
0.16
17.3
19.7
9.98
9.98
4.34
7.22
1.96
2.22
.063
.075
.039
.044
3.49 26.6 80 0.90 0.61 9.0 0.32 0.18 21.3 9.98 9.38 2.40 .084 .047
0.49 29.0 50 0.45 0.20 5.8 0.17 0.12 14.5 10.60 1.16 1.67 .048 .034
1,300
1.73
2.75
30.7
30.0
60
70
0.61
0.76
0.35
0.48
6.5
7.4
0.21
0.25
0.13
0.15
18.4
21.0
10.60
10.60
4.61
7.67
2.00
2.22
.063
.074
.040
.044
3.49 28.3 80 0.90 0.61 8.4 0.29 0.17 22.6 10.60 9.96 2.38 .081 .047
1,400
0.49
1.73
30.7
32.4
50
60
0.45
0.61
0.20
0.35
5.7
6.3
0.16
0.20
0.12
0.13
15.4
19.4
11.20
11.20
1.22
4.88
1.74
2.03
.051
.064
.036
.041
1,500
0.49
1.73
32.3
34.1
50
60
0.45
0.61
0.20
0.35
5.6
6.0
0.16
0.19
0.12
0.13
16.2
20.5
11.80
11.80
1.29
5.14
1.81
2.06
.053
.065
.038
.043
1,600
0.49
1.73
33.9
35.8
50
60
0.45
0.61
0.20
0.35
5.5
5.8
0.17
0.18
0.12
0.12
17.0
21.5
12.38
12.38
1.35
5.39
1.88
2.09
.056
.066
.040
.044
1,700
0.49
1.73
35.5
37.5
50
60
0.45
0.61
0.20
0.35
5.5
5.7
0.16
0.18
0.12
0.12
17.8
22.5
12.96
12.96
1.41
5.64
1.95
2.13
.058
.066
.042
.046
1,800
0.49
1.73
37.0
39.1
50
60
0.45
0.61
0.20
0.35
5.5
5.5
0.16
0.17
0.12
0.12
18.5
23.5
13.53
13.53
1.48
5.89
2.02
2.16
.061
.067
.044
.047
1,900
0.49
1.73
38.6
40.8
50
60
0.45
0.61
0.20
0.35
5.4
5.4
0.16
0.17
0.12
0.12
19.3
24.5
14.09
14.09
1.54
6.13
2.09
2.19
.063
.068
.047
.049
2,000
0.00
0.49
37.2
40.1
46
50
0.39
0.45
0.00
0.20
5.6
5.2
0.17
0.16
0.13
0.12
17.1
20.1
14.64
14.64
0.00
1.60
2.07
2.15
.062
.065
.047
.049
0.54 27.3 50 0.45 0.20 6.0 0.18 0.12 13.7 9.98 1.09 1.63 .048 .032
1,200
1.91
3.03
28.9
28.2
60
70
0.61
0.76
0.35
0.48
7.3
8.7
0.24
0.30
0.14
0.17
17.3
19.7
9.98
9.98
4.36
7.23
2.10
2.45
.070
.086
.041
.048
3.84 26.6 80 0.90 0.61 10.1 0.36 0.20 21.3 9.98 9.38 2.68 .097 .052
0.54 29.0 50 0.45 0.20 5.9 0.17 0.12 14.5 10.60 1.16 1.71 .050 .035
1,300
1.91
3.03
30.7
30.0
60
70
0.61
0.76
0.35
0.48
7.0
8.2
0.23
0.28
0.14
0.16
18.4
21.0
10.60
10.60
4.63
7.68
2.14
2.45
.070
.085
.043
.049
3.84 28.3 80 0.90 0.61 9.4 0.34 0.19 22.6 10.60 9.96 2.66 .095 .053
0.54 30.7 50 0.45 0.20 5.8 0.17 0.12 15.4 11.20 1.22 1.78 .052 .037
1,400
1.91
3.03
32.4
31.7
60
70
0.61
0.76
0.35
0.48
6.7
7.7
0.22
0.26
0.14
0.15
19.4
22.2
11.20
11.20
4.90
8.12
2.17
2.45
.071
.084
.044
.049
3.84 29.9 80 0.90 0.61 8.8 0.31 0.18 23.9 11.20 10.53 2.64 .092 .053
1,500
0.54
1.91
32.3
34.1
50
60
0.45
0.61
0.20
0.35
5.7
6.5
0.17
0.21
0.12
0.13
16.2
20.5
11.80
11.80
1.29
5.16
1.85
2.20
.055
.072
.039
.045
1,600
0.54
1.91
33.9
35.8
50
60
0.45
0.61
0.20
0.35
5.7
6.3
0.17
0.20
0.12
0.13
17.0
21.5
12.38
12.38
1.35
5.41
1.92
2.24
.058
.072
.041
.047
1,700
0.54
1.91
35.5
37.5
50
60
0.45
0.61
0.20
0.35
5.6
6.1
0.17
0.19
0.12
0.13
17.8
22.5
12.96
12.96
1.42
5.66
1.99
2.27
.060
.073
.043
.048
1,800
0.54
1.91
37.0
39.1
50
60
0.45
0.61
0.20
0.35
5.6
5.9
0.17
0.19
0.12
0.13
18.5
23.5
13.53
13.53
1.48
5.91
2.06
2.30
.063
.074
.045
.050
1,900
0.54
1.91
38.6
40.8
50
60
0.45
0.61
0.20
0.35
5.5
5.7
0.17
0.18
0.12
0.13
19.3
24.5
14.09
14.09
1.54
6.16
2.13
2.33
.065
.075
.047
.051
2,000
0.54
1.91
40.1
42.3
50
60
0.45
0.61
0.20
0.35
5.5
5.6
0.17
0.18
0.12
0.13
20.1
25.4
14.64
14.64
1.60
6.40
2.19
2.36
.067
.075
.050
.053
2,100
0.54
1.91
41.6
43.9
50
60
0.45
0.61
0.20
0.35
5.4
5.5
0.17
0.17
0.13
0.12
20.8
26.3
15.19
15.19
1.66
6.64
2.26
2.40
.070
.076
.052
.054
2,200
0.54
1.91
43.1
45.5
50
60
0.45
0.61
0.20
0.35
5.4
5.3
0.17
0.17
0.13
0.12
21.6
27.3
15.73
15.73
1.72
6.87
2.32
2.42
.072
.077
.054
.056
2,300
0.00
0.54
44.5
47.0
46
50
0.39
0.45
0.00
0.20
5.2
5.1
0.16
0.16
0.12
0.12
20.5
23.5
16.26
16.26
0.00
1.78
2.30
2.39
.071
.075
.054
.056
aFor bulls that are at least 12 months of age and weigh more than 50 percent of their mature weight.
bVitamin A requirements per pound of dry feed are 1,000 IU's for growing bulls and 1770 IU's for breeding bulls.

Printed by University of Arkansas Cooperative Extension Service Printing Services.
Issued in furtherance of Cooperative Extension work, Acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of
Agriculture, Director, Cooperative Extension Service, University of Arkansas. The Arkansas Cooperative Extension Service offers its
programs to all eligible persons regardless of race, color, national origin, religion, gender, age, disability, marital or veteran status, or any
other legally protected status, and is an Affirmative Action/Equal Opportunity Employer.
MP391PD110RV

Nutrient requirment table NRC

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