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Publication #AN286

Florida Dairy Industry Statistics: Herd Performance Measures and Benchmarks1

K.G. Arriola and A. De Vries2

This publication summarizes technical performance data of dairy herds in Florida and the Southeast United States collected through the Dairy Herd Improvement (DHI) program. These benchmark data are intended for dairy producers, the allied dairy industry, dairy Extension personnel, and dairy students. Benchmarking is a process that a dairy farm can use to evaluate and compare itself in chosen areas to an external reference point to monitor and improve its practices. Benchmark data are also useful in teaching.

Tables 1 and 2 show technical data collected in Florida herds from 1993 to 2012 from a variety of published sources. The number of dairy cows enrolled in the Florida DHI program decreased from 55,648 head in 1993 to 45,954 head in 2012 after a low of 30,879 head in 2002. This number (45,954 head) is approximately 40% of the dairy cows in Florida in 2012. Notable changes from 1993 to 2012 are the increase in herd size, increase in milk production per cow, variation in days open, and the decrease in percent left herd.

For more information on the definition and calculation of the various technical dairy measures used in the tables in this publication, see the DHI Glossary (October 2011) from Dairy Records Management Systems in Raleigh, NC, the processor of the DHI records (available at http://www.drms.org/PDF/materials/glossary.pdf).

The 2012 results for herds in Florida and the Southeast have been sorted by herd size (Table 3), milk production (Table 4), somatic cell count (Table 5), pregnancy rate (Table 6), and percent of herd bred to proven AI (artificial insemination) sires (Table 7). The data were sorted to have a similar number of Florida herds in each of the three categories. Then those categories were also used for the results in the Southeast region, although the number of Southeast herds in each category may not be similar.

Table 3 shows the data sorted by herd size. On average, larger herds produced more milk per cow, had better milk quality, and had better reproduction. Table 4 shows the data sorted by rolling milk, which is the total milk produced in the last 365 days. Herds that produced more milk per cow were on average larger, had better milk quality, had better reproduction, and used genetically superior sires. Table 5 shows data sorted by somatic cell counts, expressed in thousands of cells per ml. Somatic cell count is a measure of milk quality. Herds with better milk quality were on average larger and produced more milk per cow. Table 6 shows data sorted by pregnancy rate. Herds with greater pregnancy rates were on average larger, produced more milk per cow, and had better milk quality. Finally, Table 7 shows data sorted by herd bred to proven AI bulls (%). Herds with a greater percentage of their animals bred to proven AI bulls were on average larger and produced more milk per cow per year. Reproduction was better, too.

A national, uniform set of technical performance measures for dairy herds does not exist. Therefore, these benchmark statistics may be compared to similar data found at various websites, including the USDA (http://www.aphis.usda.gov/animal_health/nahms/dairy/index.shtml; http://aipl.arsusda.gov) and the University of Wisconsin (http://future.aae.wisc.edu).

Table 1. 

Florida dairy herd performance averages from 1993 to 2001.1

Measure

1993

1994

1995

1996

1997

1998

2000

2001

No. Cows

55,648

50,780

43,476

34,374

39,658

34,017

37,278

33,488

No. Herds

122

112

90

71

79

69

57

52

Average Herd Size

456

453

483

554

502

492

654

644

In Milk on Test Day, %

86

87

87

87

87

87

86

84

Pounds of Milk per Year

17,761

18,359

17,906

18,037

18,269

18,128

19,054

18,661

Peak Milk - 1st Calf (lbs/day)

67

70

68

68

64

66

71

69

Peak Milk - 2nd & Later (lbs/day)

88

90

87

87

82

82

88

87

Fat %

3.5

3.6

3.7

3.7

3.7

3.7

3.5

3.6

Pounds of Fat

622

669

656

666

669

670

676

672

Pounds of Protein

592

621

607

601

584

579

610

593

Value of Milk ($/cow/year)

2,658

2,571

2,595

2,884

3,036

2,898

2,799

3,048

Projected Minimum Calving Interval (months)

14.1

14.5

14.4

14.4

14.7

15.3

15.2

15.7

Days Dry

69

67

67

69

70

69

72

74

% Cows Dry > 70 Days

19

18

18

20

18

19

19

21

Days to 1st Breeding

77

80

83

86

93

96

96

97

Days Open

148

160

158

159

166

185

183

197

% Cows Open > 100 at 1st Breeding

14

15

16

18

27

32

29

34

No. Breeding per Conception

4.0

4.4

4.1

3.9

3.4

3.3

3.1

3.5

% Possible Breeding Serviced

52

51

48

46

34

31

29

26

Age at 1st Calving (months)

25

25

25

25

25

25

25

25

Age - All Cows (months)

44

44

43

44

44

44

43

44

% with Sire Identity

34

34

36

35

35

37

29

33

Average PTA$ Sires

151

165

67

82

88

102

122

147

Average PTA$ Service Sires

210

231

141

144

150

173

111

298

% Left Herd

40

40

40

38

37

36

32

33

1 Source: Southeast Dairy Herd Improvement Association (DHIA), September 30, of the respective year. Cows in herds on official types of test. Accessed December 21, 2012, http://www.animal.ufl.edu/dhia.

Note: For a further explanation of measures used in this table, visit http://www.drms.org/PDF/materials/glossary.pdf.

Table 2. 

Florida dairy herd performance averages from 2002 to 2012.

Measure

20021,2

20031,3

20041,3

20051,3

20061,3

20071,3

20081,3

20101,3

20124

No. Cows

30,879

56,366

57,510

54,375

54,978

51,406

51,711

47,128

45,954

No. Herds

47

92

82

71

66

62

59

58

56

Average Herd Size

657

613

698

766

833

829

876

812

821

In Milk on Test Day, %

85

84

84

86

85

86

86

87

83

Pounds of Milk per Year

19,461

18,160

18,307

18,987

18,835

19,607

18,982

19,825

18,751

Peak Milk - 1st Calf (lbs/day)

72

70

68

72

72

74

75

70

68

Peak Milk - 2nd & Later (lbs/day)

87

88

87

85

91

94

93

91

80

Fat %

3.7

3.8

4.0

3.7

3.6

3.6

3.4

3.4

3.5

Pounds of Fat

729

683

672

716

687

705

655

669

661

Pounds of Protein

599

541

546

577

546

566

540

553

554

Value of Milk ($/cow/year)

3,065

2,579

3,210

3,211

2,982

3,558

3,904

3,355

4,107

Projected Minimum Calving Interval (months)

15.6

16.0

15.6

15.5

15.7

15.7

15.3

15.2

14.8

Days Dry

75

78

77

75

72

74

73

72

NA*

% Cows Dry > 70 Days

21

37

36

19

18

20

19

30

32

Days to 1st Breeding

102

107

106

112

110

109

107

103

102

Days Open

194

197

192

193

196

197

190

182

165

% Cows Open > 100 at 1st Breeding

22

33

28

31

27

25

25

20

32

No. Breeding per Conception

3.3

3.0

3.0

2.8

2.8

3.1

2.7

2.8

3.0

% Possible Breeding Serviced

28

26

25

26

25

26

24

28

NA

Age at 1st Calving (months)

25

25

25

26

26

25

25

25

25

Age - All Cows (months)

65

44

43

44

44

45

66

42

NA

% with Sire Identity

33

23

25

29

35

36

37

42

34

Average PTA$ Sires

177

86

149

98

119

127

163

152

NA

Average PTA$ Service Sires

329

344

354

239

304

291

343

336

NA

% Left Herd

34

39

33

31

34

32

33

34

44

Preg Rate-Year Ave, %

NA

NA

NA

NA

NA

NA

NA

NA

12.9

SCC Actual (x1000)

NA

NA

NA

NA

NA

NA

NA

NA

291

1Source: Southeast DHIA, September 30, of the respective year..

2Source: Southeast DHIA, Cows in Herds on official types of test (01–34).

3Source: Southeast DHIA, Cows in Herds on all types of test (01–74).

1,2,3 Source: Appendix, Florida Dairy Production Conference, accessed December 21, 2012, http://dairy.ifas.ufl.edu.

4 Source: Dairy Records Management Systems, accessed December 21, 2012, http://www.drms.org.

*NA = not available

Note: For a further explanation of measures used in this table, visit http://www.drms.org/PDF/materials/glossary.pdf.

Table 3. 

Florida and Southeast DHIA dairy herd performance averages sorted by “Number of cows-All lactations” (2012).1

Measure

Florida

 

Southeast2

 

< 400

400–700

> 700

 

< 400

400–700

> 700

Number of herds

17

17

17

 

363

41

30

Number of cows-All Lact

243

549

994

 

147

528

1,018

Number of cows-1st Lact

96

216

395

 

559

205

398

Days in Milk

172.8

171.4

163.3

 

169.7

170.4

161.9

Cows left herd-All Lact, %

43.9

45.1

42.8

 

39.8

40.5

42.7

Cows died-All Lact, %

9.1

8.0

8.0

 

6.2

7.4

7.0

Cows left herd for Repro-All Lact, %

7.1

4.8

6.0

 

7.3

6.0

5.6

Milk blend price, $/cwt

21.2

21.8

21.4

 

21.1

21.8

21.1

Production

             

Rolling Milk, lbs/year

15,631

18,383

20,666

 

17,775

18,745

20,819

Rolling Fat, lbs/year

533.0

681.4

757.6

 

664.2

735.7

783.5

Rolling Protein, lbs/year

464.3

562.6

639.6

 

553.1

598.3

647.7

Summit Milk 1st Lact

54.4

62.3

67.9

 

59.0

63.3

68.3

Summit Milk 3rd+ Lact

72.3

85.8

94.3

 

80.3

85.6

93.8

Peak Milk 1st Lact

58.9

67.9

74.5

 

63.5

68.5

73.9

Peak Milk 3rd+ Lact

77.3

92.4

101.4

 

85.7

91.6

100.3

Proj 305 Day ME Milk

17,007

20,685

21,812

 

19,386

20,816

21,681

Standardized 150 Day Milk

56.2

61.6

66.8

 

59.8

63.0

68.1

Udder Health

             

SCC Actual (x1000)

392.6

326.9

300.0

 

325.7

321.0

285.6

SCC Score

3.5

3.1

3.0

 

3.2

3.2

2.9

SCC Score for 1st Lact Cows

3.3

2.8

2.8

 

2.9

2.9

2.6

SCC Score for 2nd Lact Cows

3.4

3.0

2.9

 

3.0

3.1

2.8

SCC Score for 3rd+ Lact Cows

3.7

3.5

3.4

 

3.6

3.6

3.3

Reproduction

             

Preg Rate-Year Ave, %

8.2

12.3

15.6

 

13.4

14.0

15.4

Actual Calving Interval, mo

14.8

13.8

13.5

 

14.4

14.1

13.5

Births 4+ Calving Diff-1st Lact,%

10.5

2.8

1.5

 

4.8

8.0

1.7

Days to 1st Serv-Total Herd

116.2

100.5

93.4

 

104.4

94.9

90.6

Con Rate for Past 12M-1st Serv

55.4

54.1

55.1

 

50.0

49.6

51.0

Dry Less Than 40 Days, %

15.8

9.8

12.2

 

14.6

11.5

10.8

Dry Less Than 70 Days, %

38.4

34.1

26.1

 

31.3

31.6

24.9

Genetics

             

Herd Bred to Proven AI Bulls, %

29.2

36.7

60.4

 

55.0

44.5

57.6

Herd Bred to Non-AI Bulls, %

56.5

49.2

45.6

 

37.3

36.2

44.2

Heifers ID by Sire, %

61.5

77.1

56.3

 

79.0

85.0

60.4

Cows ID by Sire, %

26.8

42.5

29.1

 

55.9

50.2

30.9

Rep/Rate (#hfr/#cows)*100

21.5

64.4

77.5

 

82.1

73.9

77.1

Rep/Rate (#hfr 0-12 Mo/#cows)*100

27.8

33.9

33.0

 

36.8

37.8

36.7

1, 2 Source: Dairy Records Management Systems, accessed December 21, 2012, http://www.drms.org.

2 DHIA herds in Alabama, Florida, Georgia, Louisiana, Mississippi, South Carolina, and Tennessee.

Note: For a further explanation of measures used in this table, visit http://www.drms.org/PDF/materials/glossary.pdf.

Table 4. 

Florida and Southeast DHIA dairy herd performance averages sorted by “Rolling Milk (lbs/cow/year)” (2012).1

Measure

Florida

 

Southeast2

 

< 17,500

17,500–20,500

> 20,500

 

< 17,500

17,500–20,500

> 20,500

Number of herds

18

18

17

 

175

133

109

Number of cows-All Lact

456.3

625.6

1,311.2

 

200

264.7

516.9

Number of cows-1st Lact

210.9

230.6

502.1

 

73.3

102.4

201.3

Days in Milk

166.9

169.9

175.0

 

167.3

170.6

172.3

Cows left herd-All Lact, %

43.1

45.1

42.7

 

37.2

7.9

43.1

Cows died-All Lact, %

9.6

8.3

7.2

 

6.6

7.1

6.2

Cows left herd for Repro-All Lact, %

5.5

4.2

9.4

 

6.3

7.9

8.6

Milk blend price, $/cwt

21.5

21.2

21.4

 

21.3

21.1

20.6

Production

             

Rolling Milk, lbs/year

14,602

18,994

22,858

 

14,727

18,885

22,935

Rolling Fat, lbs/year

469.3

675.8

823.7

 

567.1

696.7

837.7

Rolling Protein, lbs/year

403.2

581.8

670.1

 

468.0

582.2

694.8

Summit Milk 1st Lact

53.9

64.4

72.2

 

50.5

63.5

73.7

Summit Milk 3rd+ Lact

71.0

87.8

101.8

 

68.6

85.0

102.3

Peak Milk 1st Lact

59.2

69.7

78.8

 

54.5

68.1

78.9

Peak Milk 3rd+ Lact

76.9

94.1

108.8

 

73.7

90.4

108.6

Proj 305 Day ME Milk

16,949

21,000

23,368

 

16,614

20,910

24,215

Standardized 150 Day Milk

52.7

62.8

73.3

 

50.3

63.7

76.0

Udder Health

             

SCC Actual (x1000)

422.5

363.9

240.7

 

345.9

341.1

253.9

SCC Score

3.4

3.3

2.8

 

3.3

3.2

2.8

SCC Score for 1st Lact Cows

3.4

3.1

2.4

 

3.0

2.9

2.6

SCC Score for 2nd Lact Cows

3.1

3.2

2.7

 

3.1

3.1

2.7

SCC Score for 3rd+ Lact Cows

3.6

3.7

3.2

 

3.7

3.6

3.2

Reproduction

             

Preg Rate-Year Ave, %

8.6

13.8

16.6

 

13.6

13.7

14.3

Actual Calving Interval, mo

14.4

13.9

13.6

 

14.3

14.4

14.3

Births 4+ Calving Diff-1st Lact,%

1.0

8.3

3.3

 

1.6

7.7

4.0

Days to 1st Serv-Total Herd

122.9

98.6

80.3

 

106.3

104.1

92.6

Con Rate for Past 12M-1st Serv

70.7

54.2

33.6

 

53.9

51.8

41.3

Dry Less Than 40 Days, %

16.8

12.9

6.5

 

15.7

14.2

9.2

Dry Less Than 70 Days, %

39.7

32.1

22.1

 

35.7

29.5

23.4

Genetics

             

Herd Bred to Proven AI Bulls, %

28.4

44.1

53.1

 

51.6

54.7

56.8

Herd Bred to Non-AI Bulls, %

72.0

50.6

13.6

 

44.8

39.2

18.1

Heifers ID by Sire, %

40.7

71.3

81.6

 

74.6

80.9

85.2

Cows ID by Sire, %

17.4

31.2

53.4

 

47.5

54.6

67.2

Rep/Rate (#hfr/#cows)*100

35.5

75.2

89.3

 

75.5

87.0

94.7

Rep/Rate (#hfr 0-12 Mo/#cows)*100

14.5

34.6

42.3

 

33.2

38.4

45.3

1, 2 Source: Dairy Records Management Systems, accessed December 21, 2012, http://www.drms.org.

2 DHIA herds in Alabama, Florida, Georgia, Louisiana, Mississippi, South Carolina, and Tennessee.

Note: For a further explanation of measures used in this table, visit http://www.drms.org/PDF/materials/glossary.pdf.

Table 5. 

Florida and Southeast DHIA dairy herd performance averages sorted by “SCC Actual (x1000)” (2012).1

Measure

Florida

 

Southeast2

 

< 245

245–375

376–1,200

 

< 245

245–375

376–1,200

Number of herds

11

10

10

 

121

136

112

Number of cows-All Lact

1,130.4

827.7

550.8

 

298.2

248.7

204.7

Number of cows-1st Lact

429.0

315.9

198.2

 

115.5

94.5

74.7

Days in Milk

163.2

169.6

174.0

 

164.2

172.0

173.0

Cows left herd-All Lact, %

44.7

44.4

40.9

 

41.6

39.0

40.0

Cows died-All Lact, %

7.8

7.0

9.7

 

6.1

5.9

6.5

Cows left herd for Repro-All Lact, %

9.5

5.9

3.6

 

7.9

7.7

5.7

Milk blend price, $/cwt

21.4

21.8

20.5

 

21.3

21.1

20.9

Production

             

Rolling Milk, lbs/year

20,567

19,965

16,940

 

19,292

18,137

17,234

Rolling Fat, lbs/year

784.3

741.9

597.5

 

731.9

676.4

643.3

Rolling Protein, lbs/year

649.5

612.3

505.3

 

600.1

562.5

537.8

Summit Milk 1st Lact

64.9

66.1

57.6

 

62.3

60.4

58.0

Summit Milk 3rd+ Lact

88.2

91.5

80.0

 

86.2

82.3

77.3

Peak Milk 1st Lact

70.5

71.6

63.6

 

66.8

65.3

62.6

Peak Milk 3rd+ Lact

94.5

97.8

86.0

 

91.6

87.6

83.3

Proj 305 Day ME Milk

19,631

22,096

19,089

 

20,370

20,048

18,827

Standardized 150 Day Milk

68.3

66.7

60.6

 

64.7

61.3

57.4

Udder Health

             

SCC Actual (x1000)

205.2

314.4

487.7

 

184.9

304.6

491.6

SCC Score

2.8

3.1

3.6

 

2.6

3.2

3.7

SCC Score for 1st Lact Cows

2.5

2.9

3.4

 

2.4

2.9

3.4

SCC Score for 2nd Lact Cows

2.8

3.1

3.4

 

2.5

3.1

3.5

SCC Score for 3rd+ Lact Cows

3.1

3.4

3.9

 

2.9

3.6

4.2

Reproduction

             

Preg Rate-Year Ave, %

14.2

14.3

13.1

 

15.1

13.9

13.5

Actual Calving Interval, mo

13.8

13.8

14.6

 

14.2

14.4

14.4

Births 4+ Calving Diff-1st Lact, %

2.8

11.0

2.5

 

5.5

5.0

5.3

Days to 1st Serv-Total Herd

91.4

90.0

103.7

 

95.3

102.8

104.1

Con Rate for Past 12M-1st Serv

42.0

38.9

49.5

 

45.1

51.1

45.4

Dry Less Than 40 Days, %

6.3

8.7

14.0

 

9.5

13.1

18.2

Dry Less Than 70 Days, %

31.4

31.0

36.5

 

29.7

31.3

30.5

Genetics

             

Herd Bred to Proven AI Bulls, %

47.4

46.5

44.1

 

56.3

54.5

53.6

Herd Bred to Non-AI Bulls, %

38.0

26.5

36.9

 

27.0

38.5

32.6

Heifers ID by Sire, %

59.6

88.9

59.9

 

81.5

78.8

77.0

Cows ID by Sire, %

33.3

46.4

30.1

 

69.4

52.2

52.2

Rep/Rate (#hfr/#cows)*100

65.2

92.8

67.9

 

89.3

80.8

83.8

Rep/Rate (#hfr 0-12 Mo/#cows)*100

32.6

42.6

25.3

 

41.9

36.8

37.0

1,2 Source: Dairy Records Management Systems, accessed December 21, 2012, http://www.drms.org.

2 DHIA herds in Alabama, Florida, Georgia, Louisiana, Mississippi, South Carolina, and Tennessee.

Note: For a further explanation of measures used in this table, visit http://www.drms.org/PDF/materials/glossary.pdf.

Table 6. 

Florida and Southeast DHIA dairy herd performance averages sorted by “Pregnancy rate year average (%)” (2012).1

Measure

Florida

 

Southeast2

 

< 12

12–14

15–40

 

< 12

12–14

15–40

Number of herds

18

15

17

 

102

70

105

Number of cows-All Lact

407.6

699.9

1,314.5

 

270.4

393.8

479.5

Number of cows-1st Lact

183.2

253.9

505.0

 

111.4

146.0

177.1

Days in Milk

168.4

174.7

166.5

 

180.1

168.2

141.7

Cows left herd-All Lact, %

49.1

41.5

41.4

 

44.3

39.8

39.4

Cows died-All Lact, %

9.3

7.5

7.5

 

7.3

7.5

5.9

Cows left herd for Repro-All Lact, %

5.0

7.4

6.6

 

7.2

8.9

8.0

Milk blend price, $/cwt

21.4

21.4

21.6

 

21.2

21.3

21.1

Production

             

Rolling Milk, lbs/year

15,604

19,760

21,315

 

18,228

19,391

19,236

Rolling Fat, lbs/year

507.7

688.8

805.8

 

679.3

710.2

742.0

Rolling Protein, lbs/year

449.7

572.6

660.6

 

568.5

591.0

598.5

Summit Milk 1st Lact

55.6

66.4

68.6

 

62.1

64.0

63.0

Summit Milk 3rd+ Lact

74.4

89.7

95.6

 

83.7

87.3

86.3

Peak Milk 1st Lact

61.4

71.7

75.0

 

66.8

68.7

67.6

Peak Milk 3rd+ Lact

81.4

95.5

102.2

 

89.7

93.1

91.7

Proj 305 Day ME Milk

16,874

21,725

22,468

 

20,053

20,950

20,652

Standardized 150 Day Milk

56.6

65.4

68.9

 

62.6

64.5

63.6

Udder Health

             

SCC Actual (x1000)

372.0

337.0

289.5

 

340.1

306.5

290.1

SCC Score

3.4

3.2

3.0

 

3.2

3.1

3.0

SCC Score for 1st Lact Cows

3.1

2.9

2.8

 

3.0

2.8

2.8

SCC Score for 2nd Lact Cows

3.3

3.1

2.9

 

3.1

3.1

2.8

SCC Score for 3rd+ Lact Cows

3.6

3.5

3.3

 

3.6

3.5

3.3

Reproduction

             

Preg Rate-Year Ave, %

6.6

13.3

18.8

 

8.5

13.1

19.3

Actual Calving Interval, mo

14.6

13.8

13.4

 

14.6

14.2

13.5

Births 4+ Calving Diff-1st Lact, %

1.0

7.3

3.3

 

4.1

7.1

3.8

Days to 1st Serv-Total Herd

125.0

93.0

80.4

 

109.4

95.6

83.3

Con Rate for Past 12M-1st Serv

67.1

44.0

41.9

 

55.0

45.9

47.7

Dry Less Than 40 Days, %

16.6

11.1

5.1

 

14.8

12.6

8.7

Dry Less Than 70 Days, %

44.3

24.9

26.2

 

33.6

25.2

27.3

Genetics

             

Herd Bred to Proven AI Bulls, %

45.4

27.6

55.6

 

47.5

50.7

52.7

Herd Bred to Non-AI Bulls, %

70.9

40.8

26.4

 

53.1

31.9

31.0

Heifers ID by Sire, %

43.4

76.0

78.1

 

75.1

80.8

87.8

Cows ID by Sire, %

20.7

36.5

48.5

 

45.7

51.7

64.5

Rep/Rate (#hfr/#cows)*100

30.8

70.9

104.1

 

74.1

81.8

92.6

Rep/Rate (#hfr 0-12 Mo/#cows)*100

13.7

33.9

49.4

 

31.9

38.4

46.6

1,2 Source: Dairy Records Management Systems, accessed December 21, 2012, http://www.drms.org.

2 DHIA herds in Alabama, Florida, Georgia, Louisiana, Mississippi, South Carolina, and Tennessee.

Note: For a further explanation of measures used in this table, visit http://www.drms.org/PDF/materials/glossary.pdf.

Table 7. 

Florida and Southeast DHIA dairy herd performance averages sorted by “Herd bred to proven AI Bulls (%)” (2012).1

Measure

Florida

 

Southeast2

 

0–28

29–60

61–100

 

0–28

29–60

61–100

Number of herds

14

12

12

 

74

102

147

Number of cows-All Lact

833.4

624.7

1,120.3

 

341.0

318.9

291.4

Number of cows-1st Lact

309.4

252.8

429.8

 

131.2

123.7

108.5

Days in Milk

173.1

197.3

170.8

 

168.6

177.2

171.5

Cows left herd-All Lact, %

41.6

41.3

41.8

 

43.5

40.8

39.3

Cows died-All Lact, %

7.5

9.0

7.0

 

6.1

7.3

6.2

Cows left herd for Repro-All Lact, %

4.9

9.4

8.3

 

6.0

8.1

8.6

Milk blend price, $/cwt

21.7

21.1

20.9

 

21.5

21.0

21.0

Production

             

Rolling Milk, lbs/year

18,882

17,965

21,783

 

18,830

18,826

18,808

Rolling Fat, lbs/year

670.6

637.6

802.5

 

708.3

717.4

690.9

Rolling Protein, lbs/year

560.2

551.2

653.4

 

576.9

589.9

580.2

Summit Milk 1st Lact

64.1

59.0

70.3

 

62.3

62.6

61.6

Summit Milk 3rd+ Lact

85.9

81.5

99.3

 

84.5

86.5

85.2

Peak Milk 1st Lact

69.2

63.3

76.8

 

67.1

67.1

66.2

Peak Milk 3rd+ Lact

91.4

86.6

106.9

 

90.0

91.8

90.7

Proj 305 Day ME Milk

20,811

19,205

22,161

 

20,433

20,639

20,384

Standardized 150 Day Milk

63.3

65.0

70.0

 

63.6

64.4

62.5

Udder Health

             

SCC Actual (x1000)

333.9

353.4

328.2

 

320.1

309.2

301.2

SCC Score

3.1

3.3

3.2

 

3.1

3.1

3.1

SCC Score for 1st Lact Cows

2.9

3.1

2.9

 

2.9

2.8

2.8

SCC Score for 2nd Lact Cows

3.0

3.1

3.1

 

2.8

3.0

2.9

SCC Score for 3rd+ Lact Cows

3.4

3.5

3.5

 

3.5

3.5

3.4

Reproduction

             

Preg Rate-Year Ave, %

13.4

13.1

16.5

 

13.8

13.5

15.0

Actual Calving Interval, mo

13.9

14.7

13.8

 

14.1

14.7

14.4

Births 4+ Calving Diff-1st Lact, %

9.4

2.9

2.1

 

6.5

5.1

4.2

Days to 1st Serv-Total Herd

98.1

93.3

83.5

 

97.9

99.1

97.3

Con Rate for Past 12M-1st Serv

47.5

35.8

34.6

 

47.7

42.6

42.4

Dry Less Than 40 Days, %

13.1

10.3

6.2

 

12.0

11.8

10.3

Dry Less Than 70 Days, %

27.8

33.6

27.0

 

30.7

29.6

26.9

Genetics

             

Herd Bred to Proven AI Bulls, %

11.0

39.9

85.2

 

14.7

43.9

81.7

Herd Bred to Non-AI Bulls, %

47.8

24.0

4.8

 

45.5

24.3

7.9

Heifers ID by Sire, %

68.0

87.1

73.7

 

83.3

82.9

83.4

Cows ID by Sire, %

34.1

60.2

44.8

 

61.1

67.6

68.3

Rep/Rate (#hfr/#cows)*100

59.0

84.0

100.8

 

85.9

98.6

91.9

Rep/Rate (#hfr 0-12 Mo/#cows)*100

30.0

40.5

40.1

 

39.4

46.6

41.2

1,2 Source: Dairy Records Management Systems, accessed December 21, 2012, http://www.drms.org.

2 DHIA herds in Alabama, Florida, Georgia, Louisiana, Mississippi, South Carolina, and Tennessee.

Note: For a further explanation of measures used in this table, visit http://www.drms.org/PDF/materials/glossary.pdf.

Footnotes

1.

This document is AN286, one of a series of the Department of Animal Sciences, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date February 2013. Visit the EDIS website at http://edis.ifas.ufl.edu.

2.

K.G. Arriola, post-doctoral research associate, Department of Animal Sciences; and A. De Vries, associate professor, Department of Animal Sciences; Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, 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.