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Publication #AN341

The Florida Bull Test 2016–20171

Luara B. Canal, G. Cliff Lamb, and Nicolas DiLorenzo2

Test Procedures

The 17th annual Florida Bull Test Sale was held on January 21, 2017 at the conclusion of the 2016–2017 Florida Bull Test. The test evaluated the performance potential and breeding soundness of bulls consigned to the program at the UF/IFAS North Florida Research and Education Center (NFREC). In an ongoing effort to better serve consignors and bull buyers, the 2016–2017 test provided data on individual feed efficiency for each bull, making this the sixth year that this information has been included. After the test, consignors with bulls that met the established benchmarks of the test were then given the opportunity to sell their consignments in the Florida Bull Test Sale. In order to qualify, bulls needed to meet growth performance, structural soundness, and disposition standards. Sale bulls also must have successfully passed a breeding soundness exam to qualify for the auction. Potential buyers and consignors were able to fully evaluate the animals on all parameters including actual performance data, expected progeny differences (EPDs), and carcass ultrasound data.

The 112-day test began on August 17, 2016, with bulls being sorted into contemporary groups based on consignor and breed (8 to 12 bulls per pen). Bulls were then housed in the NFREC Feed Efficiency Facility where they received free-choice access to a total mixed ration and water to achieve a target rate of gain of 4.16 lb per day. On a dry matter (DM) basis, the diet consisted of 42% pelleted soy hulls, 41% pelleted corn gluten feed, 12% loose peanut hulls, and 5% molasses-based liquid supplement containing vitamins, minerals, and ionophore (monensin). The diet was formulated to contain 16.3% crude protein and 0.51 Mcal/lb of DM net energy of gain (NEg).

After a three-week adaptation period, bulls were weighed on two consecutive days to obtain an accurate average unshrunk weight, which was used as the on-test starting weight. Throughout the test, bulls were inspected daily for any potential health problems. An intermediate unshrunk weight was obtained after 28 days. Bulls were then weighed on two consecutive days for an accurate 56-day weight, completing the feed efficiency portion of the test. On the same day, bulls were removed from the feed efficiency facility and then housed in 3.25-acre pastures where they stayed for the remainder of the test. While pasture grazing, bulls remained in the contemporary groups assigned in the feed efficiency facility pens. In addition to grazing and free-choice bermudagrass hay, bulls were offered free-choice access to the same total mixed ration which was provided in the feed efficiency facility. On day 84 of the test, an additional intermediate unshrunk weight was obtained. At the conclusion of the 112-day feeding period, bulls were weighed again on two consecutive days, December 7 and 8, to determine their final test weights. Animal performance by average daily gain (ADG) was assessed through calculation using only the starting and finishing test weights. Bulls were monitored throughout the test for overall health and were also observed and screened for structural soundness and disposition. Any bull deemed structurally unsound with poor conformation or chronic lameness or with poor disposition was disqualified from the sale.

For the third year, the Florida Bull Test offered remote bidding for the sale of bulls through a verified online bidding company. This service allowed consignors to market their bulls to potential buyers who were unable to attend the sale in person. Additionally, a video clip of each bull was made available online as a means of visual evaluation for those who could not visit the NFREC facility before the sale. On the day of the sale, 11 of the 34 registered bidders actively participated in the live auction.

Assessment of Feed Efficiency

Upon arrival at the feed efficiency facility, bulls were tagged with electronic identification (EID) tags to monitor daily feed intake using the GrowSafe system. Average daily gain (ADG) was calculated for the 56-day feed efficiency portion of the test. Residual feed intake (RFI), calculated as the difference between actual feed intake and expected feed intake, was the measure of feed efficiency used to rank the bulls in the test. Daily feed intake was measured for each bull, and RFI was calculated as described by Maddock and Lamb (2009).

Test Rules and Regulations

General Policies and Procedures

  1. Bulls must have been born between August 15 and December 31, 2016.

  2. All consignors’ herds must have been enrolled in their respective breed association performance program. State BCIA programs were accepted for herds whose breed association did not have a performance record program.

  3. Bulls must have completed the weaning phase of the performance record program with their contemporary group, and this information must have been presented upon delivery. If data had not yet been returned from the consignor’s respective association, a copy of the weight data with the number of contemporaries was requested.

  4. Bulls could either be purebred or fullblood, but they must have been registered with their breed association. Composite bulls must have had both sire and dam registered in an acknowledged beef breed association. A registration certificate and pedigree were required at time of bull delivery to the test station. Otherwise, bulls were not accepted.

  5. Each bull was required to weigh 2.5 lb per day of age when delivered to the test station. A transit shrink of 1% per hour of transit time was allowed.

  6. Bulls must have been weaned a minimum of three weeks prior to delivery.

  7. Bulls were required to be structurally sound and show evidence of good growth potential.

  8. Birth weights of bulls were required at time of delivery.

  9. Consignments were limited to ten bulls per owner or operation. Additional consignments would have been considered on the basis of space availability.

  10. There was a limit of 132 bulls for the Florida Bull Test. More than 132 bulls were nominated. As a result, the following selection criteria were used to determine which bulls were accepted:

    • First preference was given to breeders or consignors who were members of the Florida Cattlemen's Association.

    • Secondly, bulls were accepted based on the order in which nominations were received.

  11. Bulls originating from embryo transfer must have been designated as such, and the breed of the recipient cow must have been identified.

  12. Bulls must have had legible and permanent identification (tattoo or brand) corresponding to the registration paper at delivery.

  13. Consignors were informed that horned bulls may be grouped separately. Additionally, it was recommended that bulls be dehorned and healed by time of delivery.

Health Requirements

  1. All bulls were required to be in good health. They needed to be accompanied by a health certificate bearing the herd number that indicated they were from an accredited or certified brucellosis-free state or herd or have a negative test for brucellosis no more than 30 days before delivery. Bulls originating from a state that is not tuberculosis (TB)-free were required to be accompanied by a health certificate showing they were from a certified TB-free herd or have had a negative test result for TB no more than 30 days prior to time of delivery.

  2. Bulls must have been vaccinated twice with at least 21 days between vaccinations for the following: 5-way leptospirosis, 7- or 8-way clostridium with Haemophilus somnus, and IBR/PI3/BVD/BRSV, with the last vaccination occurring at least three weeks prior to delivery. Vaccination for Pasteurella was optional. The use of intranasal vaccination against IBR/PI3 was recommended.

  3. Consignors were responsible for all examination and treatment costs if veterinary attention was required.

  4. Consignors were encouraged to contact their local or state veterinarian for interstate permit and health requirements. An official certificate of veterinary inspection (health paper) was required for each bull.

Test Results

At the conclusion of the test, an overall ranking assessing the parameters of ADG and the weight per day of age (WDA) of each bull was compiled, and an index ratio was generated. The top performing bull and top SimAngus, WF Hercules, was owned by Wells Farm, AL, indexing 133 with an ADG of 4.80 and WDA of 3.59 lb/day. The top Charolais bull, HBR Auto Pilot 477 P, was owned by Rogers Bar HR, MS, ranking 2nd overall and indexing 126 with an ADG of 4.49 and WDA of 3.49 lb/day.

The top Simmental bull, WF Hurricaine, was owned by Wells Farm in Selma, AL. It ranked 5th overall, indexing 122 with an ADG of 4.41 and WDA of 3.30 lb/day. The top Angus bull, LHH Safeguard 021 Z206 C15, owned by Hubert Hightower of Monticello, FL, was ranked 19th overall and indexed 113 with an ADG of 3.53 and WDA of 3.61 lb/day. The top Hereford bull, HRF 20X Copy That G145, was owned by Hickory Ridge Farm in Chipley, FL, and ranked 42nd overall, indexing 106 with an ADG of 3.90 and WDA of 2.77 lb/day.

The top Brahman bull, FF Mr Gibson 613, owned by Ford Farms of Malone, FL, was ranked 97th overall and indexed 92 with an ADG of 3.00 and WDA of 2.81 lb/day. Table 1 summarizes feed efficiency data, and Table 2 summarizes individual feed intake and feed efficiency. Table 3 summarizes individual animal performance.

Sale Summary

The Florida Bull Test Sale was held at the NFREC Beef Unit in Marianna, FL. Eighty-three head of the 129 qualified bulls walked through the sale ring for offer. The sale grossed $183,450 with an average of $2,210.24 per lot. Angus bulls averaged $2,044 on 38 lots while SimAngus bulls averaged $2,305 on 26 lots. Simmental bulls averaged $2,400 on 13 lots. Hereford bulls averaged $2,433 on six lots. The high-selling bull was lot 19, LHH Safeguard 021 Z206 C15, selling for $3,900. LHH Safeguard 021 Z206 C15 was consigned by Hubert Hightower of FL and purchased by Matt Revell of FL.

Figure 1. 

Mike Wells from Wells Farm receiving their award for their consignment, WF Hercules, that concluded the test as the Top Indexing SimAngus Bull. Pictured from left to right: Mike Wells of Wells Farm and David Thomas (UF/IFAS NFREC Beef Unit supervisor).


Credit:

UF/IFAS


[Click thumbnail to enlarge.]

Reference

Maddock, T. D. and G. C. Lamb. 2009. The Economic Impact of Feed Efficiency in Beef Cattle. AN217. Gainesville: University of Florida Institute of Food and Agricultural Sciences. http://edis.ifas.ufl.edu/an217

Tables

Table 1. 

Summary of feed efficiency data for bulls in the 2016–2017 Florida Bull Test.

Item

Daily Intake, lb of DM/day

RFI, lb of DM/day

Feed: Gain

Average

22.63

0.00

7.40

Range

13.15–32.35

-6.04–8.21

3.96–14.65

Table 2. 

2016–2017 Florida Bull Test individual bull feed efficiency and feed intake data.

Test ID

Breed

56-Day Daily Feed Intake, lb/day

Feed:Gain

Gain:Feed

56-Day RFI, lb/day

56-Day Feed Efficiency Rank

1453

Charolais

13.15

3.96

0.25

-6.04

1

1451

Charolais

18.10

4.66

0.21

-6.00

2

1473

Simmental

20.50

6.04

0.17

-4.78

3

1476

SimAngus

22.74

5.72

0.17

-4.58

4

1544

Angus

17.12

8.71

0.11

-4.48

5

1450

Charolais

20.84

4.45

0.22

-4.32

6

1548

Angus

13.90

4.81

0.21

-4.10

7

1560

SimAngus

17.29

7.28

0.14

-4.05

8

1496

Simmental

17.80

7.55

0.13

-3.99

9

1577

Simmental

21.39

5.43

0.18

-3.87

10

1545

Angus

17.58

9.38

0.11

-3.83

11

1553

Angus

18.58

7.03

0.14

-3.73

12

1475

SimAngus

18.77

8.98

0.11

-3.26

13

1480

Simmental

18.24

5.46

0.18

-3.17

14

1576

Simmental

23.50

5.50

0.18

-3.15

15

1538

Angus

20.57

6.56

0.15

-2.88

16

1572

Hereford

18.25

6.55

0.15

-2.82

17

1456

Charolais

19.83

5.83

0.17

-2.71

18

1528

SimAngus

20.55

5.75

0.17

-2.49

19

1551

Angus

23.78

7.20

0.14

-2.46

20

1517

SimAngus

23.05

7.37

0.14

-2.35

21

1520

SimAngus

25.67

6.61

0.15

-2.32

22

1506

Angus

21.14

6.18

0.16

-2.29

23

1534

Angus

19.14

5.47

0.18

-2.23

24

1492

Angus

23.67

6.47

0.15

-2.23

25

1463

SimAngus

22.83

6.16

0.16

-2.20

26

1522

Hereford

18.98

6.97

0.14

-1.97

27

1467

Brahman

19.27

5.09

0.20

-1.88

28

1525

SimAngus

22.17

6.38

0.16

-1.87

29

1491

Angus

19.80

8.66

0.12

-1.81

30

1546

Angus

14.56

5.82

0.17

-1.46

31

1539

Angus

19.48

7.93

0.13

-1.45

32

1486

Angus

17.51

8.83

0.11

-1.42

33

1493

SimAngus

20.51

5.22

0.19

-1.41

34

1554

Angus

19.32

8.17

0.12

-1.41

35

1552

Angus

20.89

6.94

0.14

-1.38

36

1569

Simmental

24.71

5.67

0.18

-1.36

37

1521

SimAngus

22.29

7.03

0.14

-1.28

38

1516

SimAngus

22.56

7.66

0.13

-1.15

39

1494

Simmental

20.50

6.40

0.16

-1.14

40

1562

Angus

17.33

10.22

0.10

-1.12

41

1498

SimAngus

23.46

6.75

0.15

-1.05

42

1479

Angus

20.39

6.86

0.15

-1.04

43

1564

Angus

23.24

7.54

0.13

-1.03

44

1512

Angus

23.46

5.34

0.19

-1.03

45

1575

Hereford

15.51

8.19

0.12

-1.00

46

1488

Angus

21.79

7.87

0.13

-0.92

47

1487

Angus

20.65

8.50

0.12

-0.84

48

1465

Brahman

21.63

5.49

0.18

-0.80

49

1462

Simmental

15.88

7.60

0.13

-0.76

50

1503

SimAngus

25.43

8.14

0.12

-0.76

51

1472

SimAngus

25.40

7.80

0.13

-0.74

52

1563

Angus

17.34

7.47

0.13

-0.70

53

1547

Angus

25.36

7.28

0.14

-0.69

54

1568

SimAngus

23.88

7.13

0.14

-0.66

55

1504

Angus

21.00

5.76

0.17

-0.66

56

1571

SimAngus

29.03

6.25

0.16

-0.64

57

1535

Angus

19.78

7.53

0.13

-0.64

58

1469

Simmental

25.33

6.37

0.16

-0.63

59

1460

SimAngus

16.99

6.30

0.16

-0.56

60

1541

Angus

21.79

8.59

0.12

-0.55

61

1518

SimAngus

26.79

6.45

0.15

-0.35

62

1474

Simmental

25.09

7.49

0.13

-0.33

63

1527

Angus

21.65

6.40

0.16

-0.30

64

1470

Simmental

23.87

8.10

0.12

-0.27

65

1578

Simmental

22.92

8.70

0.11

-0.24

66

1523

Hereford

21.01

7.07

0.14

-0.18

67

1466

Brahman

17.97

8.18

0.12

-0.08

68

1484

Angus

24.99

9.33

0.11

-0.02

69

1540

Angus

22.91

9.33

0.11

0.05

70

1501

SimAngus

28.68

7.47

0.13

0.12

71

1471

SimAngus

27.75

7.14

0.14

0.13

72

1542

Angus

22.90

6.95

0.14

0.19

73

1537

Angus

22.61

5.28

0.19

0.21

74

1461

SimAngus

17.90

5.73

0.17

0.22

75

1536

Angus

22.06

6.37

0.16

0.27

76

1497

SimAngus

25.50

8.16

0.12

0.40

77

1457

Charolais

26.47

5.44

0.18

0.41

78

1458

Charolais

21.27

5.29

0.19

0.50

79

1454

Charolais

21.97

6.51

0.15

0.51

80

1482

Angus

20.38

7.27

0.14

0.55

81

1570

SimAngus

24.51

7.23

0.14

0.61

82

1490

Angus

18.18

9.09

0.11

0.62

83

1515

SimAngus

28.56

6.15

0.16

0.75

84

1519

SimAngus

22.64

8.37

0.12

0.76

85

1505

Angus

24.25

5.53

0.18

0.77

86

1573

Hereford

22.67

6.79

0.15

0.81

87

1526

SimAngus

21.89

8.17

0.12

0.87

88

1464

Simmental

20.40

14.65

0.07

1.03

89

1524

Hereford

20.14

10.26

0.10

1.11

90

1499

Simmental

24.76

6.32

0.16

1.16

91

1543

Angus

26.45

8.23

0.12

1.16

92

1478

Angus

22.44

7.59

0.13

1.19

93

1566

Angus

22.51

7.66

0.13

1.36

94

1459

Charolais

23.49

6.51

0.15

1.44

95

1481

Simmental

30.26

6.92

0.14

1.45

96

1567

Angus

24.51

6.38

0.16

1.53

97

1511

Angus

25.53

7.15

0.14

1.72

98

1502

SimAngus

27.54

8.12

0.12

1.75

99

1509

Angus

18.15

6.20

0.16

1.77

100

1485

Angus

19.80

9.39

0.11

1.82

101

1452

Charolais

24.31

7.05

0.14

1.83

102

1513

Angus

21.02

5.72

0.17

1.86

103

1565

Angus

25.84

8.36

0.12

1.87

104

1549

Angus

20.05

6.65

0.15

2.00

105

1510

Angus

18.60

7.28

0.14

2.02

106

1455

Charolais

24.28

6.11

0.16

2.29

107

1550

Angus

23.46

7.38

0.14

2.33

108

1533

Angus

23.41

8.63

0.12

2.35

109

1507

Angus

21.72

6.27

0.16

2.48

110

1477

SimAngus

26.31

6.74

0.15

2.58

111

1531

Angus

22.61

10.55

0.09

2.94

112

1529

SimAngus

26.16

8.12

0.12

3.06

113

1468

Simmental

26.26

8.83

0.11

3.17

114

1530

Angus

25.36

10.48

0.10

3.30

115

1514

SimAngus

27.53

8.73

0.11

3.74

116

1557

Angus

28.43

7.73

0.13

3.85

117

1574

Hereford

23.45

9.38

0.11

3.91

118

1559

Angus

30.11

8.33

0.12

3.93

119

1532

SimAngus

22.46

12.83

0.08

4.06

120

1508

Angus

27.24

7.33

0.14

4.10

121

1561

Simmental

28.17

7.55

0.13

4.23

122

1495

Simmental

29.73

6.81

0.15

4.70

123

1500

SimAngus

30.50

9.23

0.11

4.72

124

1483

Angus

30.89

10.65

0.09

4.80

125

1489

Angus

30.11

13.76

0.07

5.34

126

1558

Angus

30.52

7.63

0.13

5.69

127

1556

Angus

30.18

13.52

0.07

7.23

128

1555

Angus

32.35

8.82

0.11

8.21

129

Table 3. 

2016–2017 Florida Bull Test individual bull performance in order of final test index.

Test ID

Breed

Arrival Weight, lb

28-Day Weight, lb

56-Day Weight, lb

84-Day Weight, lb

Final Weight, lb

Final ADG, lb/day

Final WDA, lb/day

Final Index

Final Index Ratio

Frame Score

1450

Charolais

814

976

1120

1260

1360

4.48

3.32

7.80

124

7.5

1451

Charolais

816

984

1118

1285

1430

4.73

3.23

7.96

126

6.1

1452

Charolais

760

958

1050

1230

1317.5

4.11

3.04

7.15

113

8.1

1453

Charolais

610

774

858

992

1127.5

4.07

2.94

7.00

111

6.8

1454

Charolais

776

908

992

1085

1202.5

3.57

2.80

6.36

101

6.6

1455

Charolais

714

904

978

1110

1247.5

4.40

2.99

7.39

117

7.3

1456

Charolais

814

970

1058

1145

1270

3.60

3.08

6.67

106

7.0

1457

Charolais

818

1020

1163

1275

1392.5

4.49

3.49

7.98

126

7.6

1458

Charolais

644

790

899

1005

1085

3.67

2.81

6.48

103

7.6

1459

Charolais

752

906

1010

1130

1250

3.95

3.02

6.97

110

6.9

1460

SimAngus

634

736

808

916

992

2.99

2.66

5.65

90

4.4

1461

SimAngus

562

682

784

860

951

3.05

2.55

5.60

89

4.3

1462

Simmental

626

746

801

922

1070

3.45

2.65

6.09

97

4.3

1463

SimAngus

974

1095

1193

1303

1415

3.84

3.09

6.93

110

5.8

1464

Simmental

912

982

1021

1165

1245

2.70

2.71

5.41

86

5.5

1465

Brahman

712

902

1008

1050

1122.5

3.00

2.58

5.58

88

6.6

1466

Brahman

704

812

876

898

960

1.85

2.29

4.14

66

6.2

1467

Brahman

678

838

941

994

1065

3.00

2.81

5.81

92

6.4

1468

Simmental

910

1055

1128

1235

1332.5

3.32

2.98

6.30

100

6.4

1469

Simmental

932

1090

1230

1310

1437.5

3.84

3.18

7.02

111

6.6

1470

Simmental

948

1090

1198

1280

1390

3.19

3.22

6.41

102

6.7

1471

SimAngus

1035

1240

1348

1405

1560

3.84

3.71

7.54

120

6.3

1472

SimAngus

1040

1210

1303

1390

1475

3.17

3.67

6.84

108

5.8

1473

Simmental

1035

1165

1235

1300

1470

3.79

3.30

7.10

112

6.3

1474

Simmental

1080

1150

1248

1335

1460

3.57

3.12

6.69

106

6.8

1475

SimAngus

980

1110

1133

1185

1330

2.81

2.80

5.61

89

6.2

1476

SimAngus

1035

1215

1320

1375

1522.5

3.79

3.20

6.99

111

5.8

1477

SimAngus

754

972

1093

1145

1247.5

3.33

3.35

6.69

106

5.7

1478

Angus

768

938

1013

1095

1200

3.15

3.13

6.28

99

6.6

1479

Angus

774

934

1023

1105

1212.5

3.18

3.28

6.46

102

5.7

1480

Simmental

762

894

992

1070

1152.5

3.10

2.74

5.84

93

6.2

1481

Simmental

1070

1260

1385

1450

1595

4.06

3.47

7.54

119

6.7

1482

Angus

758

850

937

1065

1160

3.39

3.26

6.65

105

5.1

1483

Angus

1040

1240

1330

1445

1547.5

3.39

3.43

6.82

108

5.5

1484

Angus

1035

1215

1278

1375

1465

3.01

3.16

6.18

98

5.4

1485

Angus

712

804

879

996

1087.5

2.92

3.12

6.03

96

5.6

1486

Angus

766

900

946

1015

1150

2.81

2.98

5.79

92

5.6

1487

Angus

854

998

1070

1140

1252.5

2.84

3.16

6.01

95

6.0

1488

Angus

852

1045

1120

1230

1337.5

3.33

3.32

6.64

105

5.7

1489

Angus

1055

1240

1303

1424

1542.5

3.24

3.42

6.66

105

6.0

1490

Angus

674

790

862

932

1027.5

2.48

2.64

5.12

81

4.7

1491

Angus

888

1040

1090

1190

1312.5

3.13

2.75

5.88

93

4.5

1492

Angus

966

1125

1253

1360

1430

3.42

3.20

6.61

105

5.7

1493

SimAngus

696

864

977

1050

1167.5

3.67

2.59

6.25

99

5.9

1494

Simmental

832

930

1018

1120

1215

3.37

2.64

6.01

95

5.3

1495

Simmental

806

1025

1138

1200

1315

3.77

2.99

6.76

107

7.3

1496

Simmental

940

1035

1095

1140

1247.5

2.54

2.71

5.25

83

5.6

1497

SimAngus

966

1170

1245

1395

1507.5

3.91

3.40

7.30

116

6.1

1498

SimAngus

902

1080

1178

1275

1407.5

3.79

3.49

7.28

115

6.0

1499

Simmental

852

980

1083

1180

1240

3.37

2.79

6.15

98

6.1

1500

SimAngus

956

1180

1275

1390

1480

3.48

3.39

6.88

109

6.1

1501

SimAngus

1090

1295

1415

1435

1505

2.72

3.26

5.99

95

6.9

1502

SimAngus

982

1145

1268

1360

1515

3.91

3.62

7.52

119

6.5

1503

SimAngus

1035

1200

1318

1420

1555

3.68

3.57

7.26

115

7.3

1504

Angus

716

872

983

1015

1082.5

2.71

2.91

5.62

89

5.4

1505

Angus

786

920

1038

1070

1182.5

3.49

2.58

6.06

96

5.1

1506

Angus

872

1005

1113

1175

1305

3.43

2.81

6.24

99

5.0

1507

Angus

588

736

850

886

988

2.96

2.42

5.38

85

4.3

1508

Angus

812

982

1070

1110

1215

3.15

2.69

5.84

93

5.6

1509

Angus

546

648

723

766

835

2.46

2.22

4.69

74

4.0

1510

Angus

570

708

762

826

867

2.21

2.16

4.38

69

3.9

1511

Angus

860

1010

1125

1210

1292.5

3.28

2.75

6.03

96

4.8

1512

Angus

770

976

1100

1180

1267.5

3.69

2.75

6.44

102

5.1

1513

Angus

556

720

829

848

939

2.82

2.46

5.28

84

4.5

1514

SimAngus

890

1065

1158

1245

1337.5

3.18

2.96

6.14

97

4.6

1515

SimAngus

978

1185

1295

1345

1387.5

3.15

2.93

6.08

96

5.6

1516

SimAngus

964

1100

1170

1230

1372.5

3.28

3.28

6.56

104

6.1

1517

SimAngus

1025

1185

1265

1390

1537.5

4.00

3.34

7.33

116

6.9

1518

SimAngus

1015

1155

1293

1360

1515

4.06

3.33

7.39

117

6.0

1519

SimAngus

876

996

1073

1160

1240

2.85

2.71

5.56

88

6.1

1520

SimAngus

1100

1230

1373

1450

1535

3.39

3.38

6.77

107

6.0

1521

SimAngus

918

1045

1143

1275

1437.5

4.22

3.21

7.43

118

7.1

1522

Hereford

822

940

1013

1120

1227.5

3.28

2.89

6.17

98

5.3

1523

Hereford

794

920

1008

1140

1237.5

3.54

2.95

6.49

103

5.6

1524

Hereford

816

898

954

1055

1205

3.22

2.76

5.98

95

5.4

1525

SimAngus

934

1035

1148

1295

1392.5

3.92

3.08

7.00

111

5.3

1526

SimAngus

808

966

1020

1145

1237.5

3.28

3.23

6.51

103

5.6

1527

Angus

780

934

1023

1080

1165

2.96

2.73

5.69

90

4.5

1528

SimAngus

808

982

1075

1150

1217.5

3.06

3.11

6.17

98

5.8

1529

SimAngus

890

1020

1108

1265

1367.5

3.93

3.30

7.24

115

5.7

1530

Angus

946

1030

1108

1150

1227.5

2.28

2.60

4.88

77

4.9

1531

Angus

848

888

979

1005

1127.5

2.40

2.68

5.08

81

4.3

1532

SimAngus

770

898

932

1065

1177.5

3.07

2.97

6.04

96

4.2

1533

Angus

840

962

1020

1065

1185

2.83

2.76

5.59

89

5.5

1534

Angus

734

858

977

1095

1185

3.61

2.88

6.48

103

5.9

1535

Angus

800

916

987

1075

1150

2.77

2.94

5.71

90

5.2

1536

Angus

796

928

1006

1080

1190

3.38

2.83

6.20

98

5.8

1537

Angus

652

842

978

1000

1082.5

3.08

2.84

5.92

94

5.9

1538

Angus

922

1020

1138

1185

1290

2.93

3.04

5.96

95

5.5

1539

Angus

874

962

1033

1140

1260

3.26

2.94

6.20

98

3.6

1540

Angus

946

1065

1155

1260

1370

3.15

3.19

6.34

100

5.1

1541

Angus

896

1030

1115

1220

1342.5

3.30

3.09

6.39

101

5.2

1542

Angus

848

986

1078

1165

1272.5

3.39

2.94

6.33

100

4.8

1543

Angus

992

1155

1250

1335

1400

2.95

3.28

6.23

99

4.8

1544

Angus

984

1055

1115

1130

1237.5

2.08

2.90

4.97

79

6.6

1545

Angus

970

1070

1110

1165

1295

2.59

2.76

5.34

85

5.7

1546

Angus

586

680

734

802

860

2.38

2.44

4.82

76

5.5

1547

Angus

988

1175

1278

1345

1440

3.19

3.42

6.61

105

6.8

1548

Angus

630

746

820

954

1035

3.37

2.65

6.01

95

4.9

1549

Angus

596

732

814

888

963

2.84

2.82

5.66

90

4.8

1550

Angus

744

898

987

1105

1202.5

3.51

2.88

6.39

101

5.1

1551

Angus

1035

1220

1305

1420

1515

3.53

3.61

7.13

113

6.1

1552

Angus

850

996

1073

1120

1190

2.55

2.99

5.54

88

5.6

1553

Angus

934

1015

1105

1245

1350

3.51

3.41

6.92

110

5.5

1554

Angus

794

928

1028

1140

1240

3.08

3.12

6.20

98

5.7

1555

Angus

864

1040

1138

1220

1330

3.55

3.06

6.61

105

5.8

1556

Angus

962

1095

1180

1305

1427.5

3.33

3.34

6.66

106

5.5

1557

Angus

868

1090

1165

1260

1392.5

3.87

3.18

7.05

112

4.5

1558

Angus

824

1035

1155

1210

1340

3.65

3.27

6.92

110

5.5

1559

Angus

978

1195

1275

1380

1482.5

3.66

3.42

7.08

112

5.8

1560

SimAngus

874

1025

1065

1190

1290

3.20

2.82

6.02

95

4.6

1561

Simmental

842

1050

1120

1165

1282.5

3.32

2.93

6.25

99

5.5

1562

Angus

820

876

940

1035

1140

2.63

2.52

5.16

82

4.3

1563

Angus

684

832

866

964

1020

2.54

2.49

5.03

80

4.6

1564

Angus

938

1110

1195

1305

1427.5

3.62

3.20

6.82

108

6.3

1565

Angus

898

1070

1175

1245

1255

2.26

2.80

5.06

80

5.6

1566

Angus

776

936

1008

1120

1170

2.92

2.79

5.71

91

4.9

1567

Angus

760

912

1050

1140

1225

3.48

3.00

6.48

103

5.7

1568

SimAngus

922

1090

1190

1305

1457.5

4.06

3.17

7.23

115

6.1

1569

Simmental

916

1115

1205

1330

1455

4.41

3.30

7.71

122

6.4

1570

SimAngus

892

1080

1145

1235

1330

3.35

2.87

6.21

98

5.0

1571

SimAngus

1095

1300

1420

1540

1697.5

4.80

3.59

8.39

133

7.6

1572

Hereford

834

954

1015

1130

1240

3.40

2.69

6.09

97

5.7

1573

Hereford

802

914

1020

1150

1270

3.90

2.77

6.67

106

5.6

1574

Hereford

724

856

943

1070

1162.5

3.21

2.52

5.73

91

3.9

1575

Hereford

690

758

808

924

1025

2.88

2.60

5.49

87

4.6

1576

Simmental

976

1130

1250

1300

1432.5

3.77

3.19

6.96

110

6.8

1577

Simmental

908

1075

1188

1260

1377.5

3.67

3.08

6.75

107

6.1

1578

Simmental

948

1095

1160

1220

1325

2.79

2.94

5.73

91

5.0

Footnotes

1.

This document is AN341, one of a series of the Department of Animal Sciences, UF/IFAS Extension. Original publication date February 2018. Visit the EDIS website at http://edis.ifas.ufl.edu.

2.

Luara B. Canal, MS candidate, Department of Animal Sciences; G. Cliff Lamb, professor and head, Department of Animal Science, Texas A&M University; and Nicolas DiLorenzo, associate professor, Department of Animal Sciences, UF/IFAS North Florida Research and Education Center; UF/IFAS Extension, Gainesville, FL 32611.


The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations. For more information on obtaining other UF/IFAS Extension publications, contact your county's UF/IFAS Extension office.

U.S. Department of Agriculture, UF/IFAS Extension Service, University of Florida, IFAS, Florida A & M University Cooperative Extension Program, and Boards of County Commissioners Cooperating. Nick T. Place, dean for UF/IFAS Extension.