University of FloridaSolutions for Your Life

Download PDF
Publication #AN325

The Florida Bull Test 2014–20151

Carla D. Sanford, G. Cliff Lamb, and Nicolas DiLorenzo2

Test Procedures

The 2014–2015 Florida Bull Test concluded with the evaluation of 103 bulls. The test assessed the performance potential and breeding soundness of bulls consigned to the program at the UF/IFAS North Florida Research and Education Center (NFREC). For the fourth year, the test provided data on individual feed efficiency for each bull. At the conclusion of the test, bulls meeting the requirements of the annual Bull Test Sale became available for purchase. Sale qualifications included adequate feed and growth performance in the test as well as appropriate structural soundness and disposition. Sale bulls were also required to pass a breeding soundness exam in order to qualify for the auction. Actual performance data obtained from the test, expected progeny differences (EPDs), and carcass ultrasound data were made available to both consignors and potential buyers as a means of assessing the sale bulls’ performance.

The 112-day test began on July 29, 2014, 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 3.5 lb per day. The diet consisted of 42% pelleted soy hulls, 41% pelleted corn gluten feed, 12% loose peanut hulls, and 5% molasses liquid supplement containing vitamins, minerals, and ionophore (monensin) on a dry matter (DM) basis. 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 health problems. After 28 days, an intermediate unshrunk weight was obtained. Bulls were then weighed on two consecutive days. The mean of these two weights was used for an accurate 56-day weight, and the feed efficiency portion of the test was concluded. On the same day, bulls were removed from the feed efficiency facility and 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 efficiency facility. On day 84 of the test, an additional intermediate unshrunk weight was obtained. After 112 days on feed, bulls were weighed on two consecutive days to determine the final test weight. Average daily gain (ADG) was determined by calculation using only the starting and finishing test weights. At the conclusion of the test, bulls were made available for purchase through the annual UF Bull Test Sale. Bulls were screened for structural soundness and disposition, and monitored throughout the test for overall health. Any bull deemed structurally unsound with poor conformation or chronic lameness or with poor disposition was disqualified from the sale.

For the first time, the Florida Bull Test offered remote bidding 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 for those who were not able to visit the NFREC facility before the sale. On the day of the sale, 8 of the 12 registered bidders actively participated in the live auction.

Assessment of Feed Efficiency

Bulls were tagged upon arrival at the feed efficiency facility with electronic identification (EID) tags to monitor daily feed intake using the GrowSafe system. Their 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 (Maddock and Lamb 2009), was the selected measure of feed efficiency used to rank the bulls in the test.

Test Rules and Regulations

General Policies and Procedures

  1. Bulls must have been born between August 15 and December 31, 2013.

  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 at time of delivery. If data had not yet been returned from the consignors’ respective association, a copy of the weight data with the number of contemporaries was requested.

  4. Bulls could either be purebred or fullblood, but must have been registered with a 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 be have been weaned a minimum of three weeks prior to delivery at the test site.

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

  8. Birth weights of bulls were required at delivery.

  9. Consignments were limited to 10 head per owner or operation. Additional consignments would have been considered on the basis of space availability.

  10. There was a limit of 100 bulls for the test. More than 100 bulls were nominated to the Florida Bull Test. As result, the following selection criteria were used to determine which bulls were accepted:

    • Groups of bulls from the same sire were given preference because of the benefit of sire-group testing rather than individual testing.

    • Preference was given to breeders or consignors who maintained their Florida Cattlemen’s Association membership.

    • 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 showed they were from a 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 a negative test result for TB no more than 30 days prior to time of delivery.

  2. Bulls must have been vaccinated twice with a period of 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 veterinarian 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 of the test as well as top performing SimAngus bull indexed 129 with an ADG of 4.13 and WDA of 4.04 lb/day, and belonged to J & W Simmentals of Headland, AL. The top Angus bull, Gray’s Impression 6262 301, owned by Grayhaven Farms of Monticello, FL was ranked 2nd overall and indexed 122 with an ADG of 4.46 and WDA of 3.23 lb/day. The top Charolais bull owned by Rogers Bar HR was ranked 3rd overall and indexed 120 with an ADG of 4.59 and WDA of 2.96 lb/day.

The top Simmental bull, A-7, owned by R & K Farm of Elba, AL was ranked 9th overall and indexed 114 with an ADG of 4.37 and WDA of 2.80 lb/day. The top Hereford bull, JTN Revolution 911Y A19, owned by J Taylor Neighbors of Americus, GA was ranked 11th overall and indexed 113 with an ADG of 3.78 and WDA of 3.34 lb/day. The top Braford bull, 4056, owned by Running M Farm of Tallahassee, FL was ranked 38th overall and indexed 103 with an ADG of 3.44 and WDA of 3.06 lb/day. The top Brahman bull, 409, owned by Ford Farms of Malone, FL was ranked 62nd overall and indexed 98 with an ADG of 3.46 and WDA of 2.69 lb/day. Table 1 summarizes the overall feed efficiency of all bulls enrolled in the test, while Table 2 summarizes individual feed intake and feed efficiency of each bull. Table 3 summarizes individual animal growth performance.

Sale Summary

The Florida Bull Test Sale was held on January 17, 2015. The test began with 103 bulls. 56 head among these were offered for sale at the annual bull test held at the NFREC in Marianna, FL. The sale grossed $256,800 with an average of $4,585 per bull lot. Angus bulls averaged $4,514 on 27 lots, SimAngus bulls averaged $4,878 on 14 lots, and Simmental bulls averaged $4,338 on 13 lots. Hereford bulls averaged $5,100 on two lots. The highest-selling bull was lot 1, J & W Cruising, selling for $6,500. J & W Cruising was consigned by J & W Simmentals of Headland, AL and purchased by Phil Farris of Elba, AL.

Figure 1. 

Consignors receiving their awards for consigning bulls that performed at the top of their respective breeds within the test.


Credit:

UF/IFAS North Florida Research and Education Center


[Click thumbnail to enlarge.]

Reference

Maddock, T. D., D. D. Henry, and G. C. Lamb. 2015. 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 all bulls enrolled in the 2014–2015 Florida Bull Test.

Item

Daily Intake, lb of DM/day

RFI, lb of DM/day

Feed: Gain

Average

21.16

0.00

9.04

Range

13.88–28.52

-5.08–7.76

4.85–40.48

Table 2. 

Individual feed efficiency and feed intake data of bulls enrolled in the 2014–2015 Florida Bull Test.

Test ID

Breed

56-Day Daily Feed Intake, lb/day

Feed: Gain

Gain: Feed

56-Day RFI, lb/day

56-Day Feed Efficiency Rank

1297

Angus

16.62

4.85

0.21

-5.08

1

1286

Angus

17.00

8.66

0.12

-4.57

2

1218

Charolais

18.15

5.44

0.18

-3.33

3

1292

Angus

17.29

6.82

0.15

-3.00

4

1221

SimAngus

19.49

7.11

0.14

-2.92

5

1245

Angus

18.72

5.49

0.18

-2.56

6

1285

Angus

16.61

14.31

0.07

-2.54

7

1259

Angus

21.00

7.71

0.13

-2.53

8

1291

Angus

16.76

5.98

0.17

-2.53

9

1276

Angus

19.83

8.88

0.11

-2.49

10

1237

Simmental

17.78

6.64

0.15

-2.37

11

1235

Simmental

19.72

8.06

0.12

-2.30

12

1281

Angus

19.13

9.74

0.10

-2.26

13

1293

Angus

17.36

7.71

0.13

-2.13

14

1213

Charolais

18.84

6.14

0.16

-2.12

15

1304

Angus

19.80

6.23

0.16

-2.04

16

1260

Angus

18.55

7.75

0.13

-2.02

17

1247

Angus

21.67

6.11

0.16

-1.89

18

1273

SimAngus

22.36

7.11

0.14

-1.82

19

1249

Angus

22.49

7.75

0.13

-1.71

20

1278

Angus

21.11

8.75

0.11

-1.71

21

1228

SimAngus

23.01

8.45

0.12

-1.66

22

1274

SimAngus

20.43

9.34

0.11

-1.59

23

1265

SimAngus

21.71

9.01

0.11

-1.58

24

1261

Braford

13.88

8.45

0.12

-1.45

25

1217

Charolais

20.69

6.60

0.15

-1.42

26

1300

Simmental

18.82

7.07

0.14

-1.36

27

1248

Angus

20.24

9.25

0.11

-1.30

28

1309

Simmental

21.58

8.14

0.12

-1.28

29

1287

Simmental

18.63

7.67

0.13

-1.20

30

1305

Angus

18.95

9.82

0.10

-1.13

31

1296

Angus

17.74

8.49

0.12

-1.12

32

1272

SimAngus

24.11

10.59

0.09

-1.11

33

1254

Angus

17.17

9.52

0.11

-1.10

34

1302

Angus

23.15

7.74

0.13

-1.09

35

1238

Simmental

20.25

6.98

0.14

-1.09

36

1282

Angus

18.72

12.41

0.08

-1.06

37

1294

Angus

16.40

9.00

0.11

-1.04

38

1268

SimAngus

19.54

10.37

0.10

-0.88

39

1301

Simmental

20.00

6.87

0.15

-0.84

40

1232

Simmental

18.24

12.85

0.08

-0.78

41

1231

Simmental

23.46

7.96

0.13

-0.61

42

1295

Angus

15.88

10.72

0.09

-0.52

43

1229

Simmental

16.99

40.48

0.02

-0.48

44

1267

SimAngus

21.39

11.14

0.09

-0.47

45

1251

Angus

19.21

9.69

0.10

-0.44

46

1234

SimAngus

21.58

7.75

0.13

-0.42

47

1236

SimAngus

19.70

8.86

0.11

-0.39

48

1211

Charolais

24.08

5.70

0.18

-0.34

49

1212

Charolais

22.86

7.31

0.14

-0.25

50

1262

Braford

17.29

5.76

0.17

-0.24

51

1310

Brahman

19.91

6.84

0.15

-0.13

52

1222

Simmental

22.75

7.06

0.14

-0.11

53

1220

Charolais

18.66

8.43

0.12

0.07

54

1288

SimAngus

22.56

8.05

0.12

0.07

55

1277

Angus

22.90

9.86

0.10

0.09

56

1216

Charolais

20.79

7.32

0.14

0.10

57

1280

Angus

20.23

8.85

0.11

0.18

58

1266

Simmental

22.79

9.45

0.11

0.27

59

1258

Angus

20.26

10.22

0.10

0.31

60

1227

Angus

20.73

7.49

0.13

0.41

61

1271

Angus

23.67

7.13

0.14

0.45

62

1239

SimAngus

19.80

8.80

0.11

0.47

63

1290

Angus

17.99

8.68

0.12

0.48

64

1312

Brahman

23.85

6.83

0.15

0.53

65

1233

Simmental

21.94

7.78

0.13

0.56

66

1306

Simmental

21.21

9.00

0.11

0.70

67

1284

Angus

24.33

9.56

0.10

0.77

68

1219

Charolais

22.87

7.81

0.13

0.78

69

1230

SimAngus

23.31

7.68

0.13

0.81

70

1279

Angus

20.82

7.99

0.13

0.84

71

1242

Angus

21.80

7.73

0.13

0.91

72

1226

Angus

19.16

9.49

0.11

0.93

73

1225

SimAngus

21.10

7.39

0.14

0.94

74

1313

Brahman

22.42

7.13

0.14

0.94

75

1223

Simmental

20.53

7.19

0.14

1.10

76

1250

Angus

22.83

9.54

0.10

1.28

77

1224

SimAngus

20.27

10.51

0.10

1.39

78

1263

Braford

20.42

8.00

0.13

1.40

79

1253

Angus

18.74

11.53

0.09

1.44

80

1264

Braford

22.04

7.09

0.14

1.50

81

1283

Angus

26.71

7.12

0.14

1.64

82

1275

Angus

26.58

9.02

0.11

1.68

83

1289

Simmental

19.62

13.56

0.07

1.84

84

1308

Simmental

22.05

7.67

0.13

1.89

85

1244

Angus

23.49

7.83

0.13

1.95

86

1298

Angus

26.95

5.86

0.17

2.04

87

1299

Simmental

22.36

9.94

0.10

2.38

88

1246

Angus

24.80

8.27

0.12

2.73

89

1214

Charolais

26.25

7.68

0.13

3.05

90

1307

SimAngus

24.37

8.69

0.12

3.19

91

1256

Angus

27.44

10.25

0.10

3.51

92

1255

Angus

27.02

9.43

0.11

3.57

93

1243

Angus

20.67

15.43

0.06

3.68

94

1311

Brahman

28.33

7.41

0.13

4.03

95

1240

Hereford

25.83

11.48

0.09

4.14

96

1215

Charolais

28.52

7.31

0.14

4.27

97

1252

Angus

23.63

19.18

0.05

4.51

98

1303

Angus

27.52

10.04

0.10

4.81

99

1241

Hereford

26.79

26.09

0.04

7.76

100

Table 3. 

Growth performance of bulls enrolled in the 2014–2015 Florida Bull Test.

Test ID

Breed

Start Weight

28-Day Weight

56-Day Weight

84-Day Weight

Final Weight

Final ADG

Final WDA

Final Index

Final Index Ratio

Frame Score

1211

Charolais

821

940

1058

1215

1335

4.59

2.96

7.55

120

7.7

1212

Charolais

920

1015

1095

1225

1325

3.62

2.94

6.56

104

7.2

1213

Charolais

788

876

960

1080

1195

3.63

2.64

6.28

99

5.9

1214

Charolais

876

1000

1068

1135

1278

3.58

2.85

6.43

102

6.6

1215

Charolais

864

964

1083

1220

1345

4.29

3.04

7.33

116

7.9

1216

Charolais

809

874

968

1120

1238

3.83

2.79

6.61

105

6.2

1217

Charolais

852

962

1028

1135

1268

3.71

2.77

6.48

103

7.9

1218

Charolais

777

862

964

1075

1175

3.55

2.63

6.19

98

7.0

1219

Charolais

886

974

1050

1220

1323

3.90

3.00

6.90

109

7.0

1220

Charolais

778

834

902

1050

1158

3.39

2.69

6.07

96

6.0

1221

SimAngus

939

996

1093

1215

1310

3.31

2.93

6.24

99

5.8

1222

Simmental

887

960

1068

1235

1320

3.87

2.97

6.83

108

6.2

1223

Simmental

725

812

885

1005

1060

2.99

2.40

5.39

85

4.1

1224

SimAngus

844

916

952

1080

1190

3.09

2.69

5.78

92

4.6

1225

SimAngus

772

834

932

1085

1125

3.15

3.18

6.33

100

5.4

1226

Angus

787

848

900

1015

1108

2.86

2.91

5.78

92

4.4

1227

Angus

797

912

952

1075

1163

3.26

3.05

6.31

100

5.0

1228

SimAngus

1095

1165

1248

1420

1488

3.50

3.48

6.99

111

5.9

1230

SimAngus

895

976

1065

1205

1328

3.86

3.17

7.03

111

6.1

1231

Simmental

1015

1100

1180

1300

1385

3.30

3.46

6.77

107

6.7

1232

Simmental

938

982

1018

1160

1255

2.83

2.61

5.44

86

5.9

1233

Simmental

857

940

1015

1130

1225

3.29

3.06

6.35

101

6.2

1234

SimAngus

904

952

1060

1195

1305

3.58

3.01

6.59

104

5.9

1235

Simmental

963

1035

1100

1260

1295

2.96

2.82

5.78

92

5.2

1236

SimAngus

873

930

998

1130

1268

3.52

2.81

6.33

100

5.5

1237

Simmental

801

894

951

1160

1290

4.37

2.80

7.17

114

5.8

1238

Simmental

841

904

1004

1170

1278

3.90

2.78

6.67

106

5.8

1239

SimAngus

819

858

945

1035

1125

2.73

2.54

5.27

84

4.7

1240

Hereford

974

1075

1100

1255

1398

3.78

3.34

7.12

113

5.7

1241

Hereford

1005

1040

1063

1255

1413

3.64

3.36

6.99

111

5.7

1242

Angus

825

930

983

1085

1180

3.17

2.98

6.15

97

5.1

1243

Angus

820

824

895

1065

1175

3.17

3.04

6.21

98

5.5

1244

Angus

837

916

1005

1130

1238

3.58

3.14

6.72

106

5.3

1245

Angus

752

820

943

1110

1210

4.09

3.11

7.20

114

5.7

1246

Angus

872

974

1040

1245

1303

3.84

3.29

7.13

113

5.9

1247

Angus

879

974

1078

1210

1298

3.74

3.10

6.84

108

6.2

1248

Angus

975

1045

1098

1210

1283

2.75

3.00

5.74

91

5.9

1249

Angus

1033

1125

1195

1340

1425

3.50

3.18

6.69

106

6.4

1250

Angus

941

986

1075

1215

1318

3.36

2.93

6.29

100

4.9

1251

Angus

885

914

996

1145

1280

3.53

2.88

6.40

101

5.2

1252

Angus

976

1035

1045

1240

1323

3.09

2.89

5.98

95

5.7

1253

Angus

793

832

884

1030

1105

2.79

2.38

5.17

82

4.9

1254

Angus

825

858

926

1050

1110

2.54

2.42

4.97

79

4.6

1255

Angus

987

1065

1148

1300

1418

3.84

2.99

6.83

108

5.2

1256

Angus

1053

1155

1203

1365

1488

3.88

3.15

7.04

111

5.6

1258

Angus

904

962

1015

1170

1230

2.91

3.04

5.95

94

5.0

1259

Angus

1018

1035

1170

1315

1383

3.26

3.39

6.65

105

6.1

1260

Angus

876

950

1010

1185

1303

3.81

3.51

7.32

116

6.2

1261

Braford

667

720

759

892

961

2.63

2.66

5.29

84

4.3

1262

Braford

584

684

752

868

969

3.44

3.06

6.49

103

6.2

1263

Braford

749

824

892

1015

1089

3.04

2.86

5.89

93

6.2

1264

Braford

755

862

929

1035

1110

3.17

2.91

6.08

96

6.4

1265

SimAngus

1055

1115

1190

1280

1483

3.82

3.26

7.08

112

6.1

1266

Simmental

1003

1085

1138

1240

1315

2.79

3.02

5.81

92

5.8

1267

SimAngus

1043

1110

1150

1270

1395

3.15

3.07

6.21

98

5.9

1268

SimAngus

952

956

1058

1170

1308

3.17

3.36

6.54

104

6.2

1271

Angus

894

1000

1080

1135

1258

3.25

3.33

6.57

104

6.3

1272

SimAngus

1213

1250

1340

1540

1675

4.13

4.04

8.17

129

8.4

1273

SimAngus

989

1065

1165

1325

1440

4.03

3.45

7.48

119

5.8

1274

SimAngus

1008

1065

1130

1295

1395

3.46

3.30

6.76

107

6.3

1275

Angus

1073

1170

1238

1375

1453

3.39

3.21

6.60

105

6.3

1276

Angus

1020

1065

1145

1240

1378

3.19

3.18

6.37

101

6.6

1277

Angus

1038

1085

1168

1275

1408

3.30

3.37

6.67

106

6.6

1278

Angus

1023

1105

1158

1280

1388

3.26

3.17

6.43

102

6.4

1279

Angus

802

884

948

1050

1178

3.35

2.53

5.88

93

4.8

1281

Angus

1003

1050

1113

1240

1345

3.06

3.04

6.10

97

5.1

1282

Angus

973

990

1058

1185

1313

3.03

3.01

6.04

96

5.8

1283

Angus

945

1040

1155

1350

1445

4.46

3.23

7.70

122

5.8

1284

Angus

1050

1085

1193

1225

1298

2.21

3.10

5.31

84

6.0

1285

Angus

990

1035

1055

1205

1295

2.72

3.01

5.73

91

6.5

1286

Angus

1015

1075

1125

1245

1398

3.42

3.21

6.62

105

6.9

1287

Simmental

822

908

958

1090

1155

2.97

2.49

5.47

87

4.8

1288

SimAngus

933

988

1090

1240

1310

3.37

2.85

6.22

99

4.9

1289

Simmental

853

912

934

1120

1235

3.41

2.66

6.07

96

5.3

1290

Angus

733

794

849

990

1078

3.08

2.43

5.50

87

3.6

1291

Angus

725

794

882

984

1095

3.30

2.84

6.15

97

4.5

1292

Angus

834

870

976

1085

1145

2.78

2.67

5.45

86

5.2

1293

Angus

829

872

955

1110

1245

3.71

2.88

6.60

105

4.6

1294

Angus

769

800

871

1010

1133

3.25

2.57

5.81

92

4.4

1295

Angus

760

810

843

994

1058

2.66

2.34

5.00

79

3.5

1296

Angus

816

848

933

1045

1158

3.05

2.61

5.66

90

4.9

1297

Angus

776

848

968

1120

1210

3.88

2.72

6.59

105

5.2

1298

Angus

790

920

1048

1175

1295

4.51

2.93

7.44

118

5.6

1299

Simmental

861

934

987

1135

1210

3.12

2.76

5.88

93

5.0

1300

Simmental

806

868

955

1090

1188

3.41

2.90

6.30

100

5.3

1301

Simmental

807

882

970

1130

1195

3.46

2.79

6.25

99

5.7

1302

Angus

1020

1070

1188

1275

1400

3.39

2.97

6.36

101

6.1

1303

Angus

959

1025

1113

1260

1363

3.60

2.92

6.52

103

5.6

1304

Angus

827

900

1005

1160

1245

3.73

2.68

6.41

102

5.3

1305

Angus

922

966

1030

1165

1255

2.97

2.66

5.63

89

5.7

1306

Simmental

878

946

1010

1135

1218

3.03

2.65

5.68

90

5.7

1307

SimAngus

847

938

1004

1110

1213

3.26

2.98

6.24

99

5.9

1308

Simmental

769

816

930

1065

1160

3.49

2.85

6.34

100

6.2

1309

Simmental

984

1085

1133

1280

1363

3.38

2.91

6.29

100

5.9

1310

Brahman

755

838

918

992

1038

2.52

2.18

4.70

74

5.7

1311

Brahman

881

1010

1095

1215

1258

3.36

2.68

6.04

96

6.1

1312

Brahman

872

964

1068

1185

1260

3.46

2.69

6.16

98

7.0

1313

Brahman

809

902

985

1055

1108

2.67

2.30

4.96

79

5.6

Footnotes

1.

This document is AN325, one of a series of the Department of Animal Sciences, UF/IFAS Extension. Original publication date June 2016. Visit the EDIS website at http://edis.ifas.ufl.edu.

2.

Carla D. Sanford, graduate assistant; G. Cliff Lamb, professor; and Nicolas DiLorenzo, assistant professor; Department of Animal Sciences, UF/IFAS North Florida Research and Education Center, Marianna, FL 32446.


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.