cdcb logo CDCB RESEARCH REPORT
K2-19 (2-21)

State and national standardized lactation averages by breed for cows calving in

H.D. Norman, J.H. Megonigal Jr, and João Dürr
Council on Dairy Cattle Breeding
301-525-2006~ duane.norman@uscdcb.com ~ https://uscdcb.com

Lactation yields are often standardized to provide a reasonably equitable comparison of dairy animals having different lactation characteristics (e.g., calving age, days milked, milking frequency, etc.). This annual report provides averages of standardized yield coming from herds enrolled in Dairy Herd Improvement (DHI). The averages are summarized for cows and heifers that calved during for each state and the nation by breed. To assure that nearly all cows calving in 2019 have completed their 305-day lactation and are included, these averages could not be derived before early 2021. The test-day data used by the Council on Dairy Cattle Breeding to calculate the standardized yield are provided by the dairy records processing centers; a report showing DHI participation as of January 1, 2021 has been summarized also using the same data source. Only data used in calculation of national genetic evaluations (see complete evaluation documentation) are included in the state and national averages. Thus, records beyond fifth lactation were excluded, as were those from cows that lacked a first-lactation record or had missing sire identification.

Breed yields differ between this report and the herd-average report. This report summarizes standardized lactation yield (yield adjusted to 305 days, twice daily milking, for month of calving, and to a mature-age basis). In contrast, the herd-average report is determined from actual herd yields. Herd-averages reported are not restricted to records usable for national genetic evaluations. The herd-averages are impacted by lactation length and dry period. Relative yields among breeds differ between the two reports because of large breed differences in the percentage of usable records and age-parity factors. The herd-average report is more current than this standardized yield report and may provide more accurate comparisons of actual breed productivity.

Lactation records were first calculated with the best prediction method in 1997 and are standardized for age-parity (lactation number), calving month, previous days open, and times milked per day. Records shorter than 305 days are extended to 305 days as part of the best prediction process. Prior to 1997, lactation records were calculated with the test-interval method. The change in methods was responsible for a part of the yield increases shown between 1995 and 2000 because predicted yield for low-producing cows is higher using best prediction than using the test-interval method. Numbers of records and averages for yields and component percentages are in Tables 1 through 6 by state for Ayrshires, Brown Swiss, Guernseys, Holsteins, Jerseys, and Milking Shorthorns respectively. Component percentages were computed from averages of standardized yields for milk and fat or protein.

Numbers of records and national averages for milk and component yields and component percentages are in Table 7A-F by breed for selected years. Jersey was the only breed that had more usable lactations (Table 7A) in 2019 than in 2018 with Jersey lactations increasing by 2.3%. Lactations in the other five breeds decreased by 3.4 to 13.0%. Compared with 2018, milk yield (Table 7B) increased for all six breeds (0.7 to 4.3%). Fat percentage (Table 7C) increased by .04 for Holsteins for the second consecutive year. Fat yield (Table 7D) in 2019 increased for all breeds, from 6 to 30 pounds. Protein percentage (Table 7E) remained the same or increased by 0.01 for all breeds. Average protein yield (Table 7F) showed a nice increase, from 5 to 26 lbs for all breeds.

A number of factors affect production averages including milk, beef, and feed prices, government programs, and characteristics of herds entering and leaving eligible testing programs. These average yields over time also reflect changes in management strategies, and the apparent shift of genetic emphasis toward other health and fitness traits. Still, genetic selection continues to have a positive effect on the milk traits. Interpretation of trends in lactation averages should be made in view of all the factors affecting profitability.

DHI Lactation Averages for Ayrshire  
Table 1. Ayrshire State and national standardized lactation averages for cows
calving in 2019 with records used in national genetic evaluations

  Records Herds Milk Fat Protein
State (no.) (no.) (lb) (%) (lb) (%) (lb)
Arizona 3 1 21,253 3.55 754 3.15 670
Arkansas 1 1 15,355 3.74 574 3.15 483
California 108 4 29,996 3.70 1109 3.04 912
Colorado 10 4 20,469 3.69 755 3.16 647
Connecticut 76 6 19,834 4.17 826 3.25 645
Delaware 8 4 21,849 4.04 883 3.05 666
Florida 4 1 19,311 3.73 721 3.02 583
Idaho 5 4 21,196 4.13 875 3.38 715
Illinois 201 14 19,626 3.86 758 3.17 622
Indiana 63 15 21,088 4.28 903 3.33 701
Iowa 262 27 19,653 3.96 778 3.19 626
Kansas 4 1 15,609 3.95 617 2.93 458
Kentucky 8 5 19,736 3.89 768 3.24 639
Maine 116 11 17,731 3.93 696 3.13 555
Maryland 191 11 21,182 4.10 868 3.14 664
Massachusetts 16 5 15,344 3.85 590 3.08 473
Michigan 26 13 22,032 3.77 832 3.14 691
Minnesota 246 25 17,411 3.92 682 3.19 556
Mississippi 19 3 18,109 3.76 681 3.34 606
Missouri 24 4 17,846 4.02 717 3.25 580
Nebraska 3 2 17,948 4.06 729 3.43 616
New Hampshire 62 9 18,274 3.97 726 3.26 596
New Jersey 1 1 14,070 3.69 519 2.93 412
New Mexico 9 2 21,803 3.75 819 3.22 701
New York 562 96 19,422 3.91 759 3.10 603
North Carolina 12 4 14,911 4.18 623 3.30 492
North Dakota 11 1 15,919 4.29 684 3.44 548
Ohio 223 31 17,961 4.18 751 3.16 568
Oklahoma 47 4 19,520 3.78 737 3.26 636
Oregon 13 3 17,019 4.03 685 3.41 581
Pennsylvania 498 81 19,287 3.94 760 3.15 607
Rhode Island 7 2 13,213 4.24 561 3.19 421
Tennessee 6 3 18,876 4.25 802 3.22 607
Texas 13 3 17,793 3.99 709 3.22 573
Utah 9 1 14,140 3.81 538 3.36 475
Vermont 235 26 18,343 3.94 722 3.11 571
Virginia 16 3 23,086 4.26 984 3.05 704
Washington 6 3 20,558 4.51 927 3.26 670
West Virginia 22 2 14,540 3.56 517 3.04 443
Wisconsin 618 89 20,110 3.95 795 3.16 636
United States 3,764 525 19,537 3.95 772 3.16 616 

Return to the CDCB Home page

DHI Lactation Averages for Brown Swiss  
Table 2. Brown Swiss State and national standardized lactation averages for cows
calving in 2019 with records used in national genetic evaluations

  Records Herds Milk Fat Protein
State (no.) (no.) (lb) (%) (lb) (%) (lb)
Arizona 23 1 21,694 4.46 967 3.52 763
Arkansas 14 1 18,623 3.45 643 3.34 623
California 268 27 24,364 3.97 967 3.38 824
Colorado 862 6 24,334 3.69 899 3.37 820
Connecticut 40 7 21,693 4.07 882 3.30 717
Delaware 6 4 21,475 4.34 932 3.40 731
Florida 20 4 21,087 3.64 768 3.15 663
Georgia 150 2 22,304 3.99 889 3.32 740
Idaho 97 6 23,864 3.96 944 3.32 793
Illinois 429 48 22,151 4.04 895 3.36 744
Indiana 596 30 22,710 4.01 910 3.39 771
Iowa 1,097 48 21,922 4.17 913 3.38 741
Kansas 52 6 24,348 4.18 1017 3.29 801
Kentucky 59 4 26,645 4.12 1099 3.32 886
Maine 12 6 20,089 3.89 782 3.15 634
Maryland 79 20 22,012 4.17 918 3.28 722
Massachusetts 121 9 20,535 4.12 847 3.27 671
Michigan 113 36 23,632 4.10 968 3.34 788
Minnesota 1,245 91 23,055 4.07 939 3.37 778
Mississippi 7 3 21,934 4.14 908 3.31 727
Missouri 431 16 19,662 4.16 818 3.45 679
Nebraska 123 4 20,122 4.63 931 3.47 698
New Hampshire 87 9 17,523 4.00 701 3.34 585
New Jersey 7 5 21,517 3.94 848 3.15 678
New Mexico 22 3 25,050 3.60 902 3.26 816
New York 1,424 141 22,130 4.07 900 3.27 723
North Carolina 91 5 23,842 4.22 1006 3.46 825
North Dakota 48 3 17,242 4.17 718 3.49 602
Ohio 979 76 22,458 4.21 944 3.39 761
Oklahoma 19 4 20,279 4.00 812 3.29 667
Oregon 162 10 24,011 4.07 978 3.26 784
Pennsylvania 1,142 149 23,083 4.06 936 3.32 767
South Carolina 5 2 27,344 3.98 1087 3.32 908
South Dakota 51 5 24,524 3.98 976 3.38 830
Tennessee 14 5 22,752 4.36 992 3.33 757
Texas 566 7 20,890 3.79 792 3.52 736
Utah 103 6 22,241 4.14 920 3.50 779
Vermont 514 24 21,466 4.21 903 3.38 727
Virginia 90 12 21,771 4.02 876 3.20 698
Washington 236 9 21,009 4.14 870 3.41 717
West Virginia 10 1 21,729 3.64 790 3.31 718
Wisconsin 3,048 253 24,036 4.15 997 3.31 797
United States 14,462 1108 22,737 4.07 926 3.35 762 

Return to the CDCB Home page

DHI Lactation Averages for Guernsey  
Table 3. Guernsey State and national standardized lactation averages for cows
calving in 2019 with records used in national genetic evaluations

  Records Herds Milk Fat Protein
State (no.) (no.) (lb) (%) (lb) (%) (lb)
California 105 6 14,951 4.29 642 3.35 501
Connecticut 28 4 18,686 4.51 843 3.32 621
Florida 4 1 16,226 3.85 625 3.04 494
Georgia 1 1 15,993 5.00 800 3.53 565
Idaho 1 1 11,942 4.02 480 3.34 399
Illinois 85 10 17,174 4.34 746 3.34 573
Indiana 160 9 20,051 4.36 874 3.22 647
Iowa 387 14 17,004 4.38 745 3.30 560
Kansas 38 1 16,370 4.37 715 3.27 536
Kentucky 35 4 19,103 3.93 751 3.14 600
Maine 29 4 13,318 4.71 627 3.36 447
Maryland 154 7 16,131 4.55 734 3.32 536
Massachusetts 24 4 14,744 4.72 696 3.24 477
Michigan 3 2 14,340 4.44 636 3.39 486
Minnesota 235 23 16,671 4.55 759 3.30 551
Mississippi 1 1 11,054 5.04 557 3.50 387
Missouri 180 10 14,687 4.16 612 3.28 481
Nebraska 1 1 17,599 5.18 911 3.65 643
New Hampshire 14 1 17,148 4.71 807 3.50 600
New Jersey 3 2 14,756 4.32 637 3.10 458
New Mexico 3 1 20,641 4.52 933 3.55 732
New York 364 43 17,585 4.63 815 3.24 570
North Carolina 9 3 20,688 4.51 932 3.42 707
North Dakota 3 1 13,965 5.16 721 3.68 514
Ohio 282 21 16,838 4.39 739 3.32 558
Oklahoma 10 2 16,077 3.89 625 3.04 490
Oregon 54 5 18,532 4.41 817 3.33 617
Pennsylvania 493 49 16,964 4.54 770 3.26 553
South Carolina 5 3 18,620 4.32 804 3.28 611
South Dakota 3 1 18,730 4.63 867 3.39 635
Tennessee 47 4 14,271 4.67 667 3.33 475
Texas 25 1 13,822 4.06 561 3.34 461
Utah 2 2 17,251 4.56 786 3.43 593
Vermont 71 6 14,966 4.84 724 3.22 482
Virginia 10 2 17,634 4.10 723 3.18 560
Washington 87 4 18,221 4.62 841 3.36 612
West Virginia 1 1 14,723 4.15 611 2.85 420
Wisconsin 1,250 46 19,097 4.59 877 3.42 652
United States 4,207 301 17,528 4.51 790 3.33 583 

Return to the CDCB Home page

DHI Lactation Averages for Holstein  
Table 4. Holstein State and national standardized lactation averages for cows
calving in 2019 with records used in national genetic evaluations

  Records Herds Milk Fat Protein
State (no.) (no.) (lb) (%) (lb) (%) (lb)
Alabama 12 3 23,107 3.35 774 2.78 642
Arizona 19,954 6 25,033 3.64 911 3.06 766
Arkansas 322 7 19,383 3.42 663 3.05 590
California 457,307 136 28,784 3.78 1087 3.14 904
Colorado 31,944 22 26,388 3.87 1021 3.15 831
Connecticut 7,262 40 27,133 4.11 1114 3.14 852
Delaware 1,866 9 27,061 3.88 1050 3.03 820
Florida 14,951 16 26,568 3.73 991 3.08 820
Georgia 5,016 38 26,070 3.90 1017 3.06 798
Idaho 113,783 35 27,201 3.92 1066 3.20 869
Illinois 27,607 167 27,823 3.85 1070 3.10 863
Indiana 25,703 110 27,271 3.93 1073 3.14 856
Iowa 62,044 232 27,907 3.95 1104 3.14 877
Kansas 15,122 50 27,749 3.89 1079 3.18 882
Kentucky 7,691 40 27,865 3.69 1028 3.04 848
Louisiana 575 6 23,034 3.56 820 2.98 687
Maine 7,768 60 27,753 4.00 1111 3.07 852
Maryland 16,321 81 25,984 3.90 1014 3.04 790
Massachusetts 2,126 37 26,301 3.91 1029 3.07 807
Michigan 117,155 245 28,020 3.87 1084 3.11 873
Minnesota 131,859 600 26,851 3.99 1072 3.14 843
Mississippi 923 10 25,550 3.99 1018 3.08 786
Missouri 6,372 77 24,309 3.83 931 3.12 758
Montana 1,036 11 26,580 3.88 1032 3.04 807
Nebraska 12,299 35 26,101 3.87 1010 3.16 824
Nevada 1,584 2 26,842 3.67 985 3.12 838
New Hampshire 4,354 43 27,638 4.00 1105 3.10 857
New Jersey 1,924 22 25,282 3.70 935 3.03 766
New Mexico 48,977 7 26,659 3.64 971 3.17 846
New York 254,958 740 27,170 4.01 1088 3.11 844
North Carolina 10,447 46 27,678 4.04 1119 3.09 855
North Dakota 1,427 11 25,548 3.76 961 3.12 798
Ohio 50,894 284 26,882 3.95 1063 3.11 835
Oklahoma 865 14 21,432 3.60 771 3.07 657
Oregon 10,579 27 26,109 3.99 1041 3.13 818
Pennsylvania 168,127 1116 26,960 3.89 1048 3.05 822
Rhode Island 114 3 29,930 3.97 1189 3.13 937
South Carolina 1,153 13 24,042 3.95 950 3.12 750
South Dakota 22,620 38 26,413 4.11 1085 3.16 835
Tennessee 2,533 34 26,402 3.90 1029 3.03 801
Texas 34,745 41 26,008 3.94 1026 3.24 843
Utah 10,722 42 26,421 4.01 1059 3.18 840
Vermont 29,671 147 27,367 3.97 1086 3.13 856
Virginia 23,875 81 26,652 3.88 1035 3.03 809
Washington 30,625 39 27,483 3.98 1094 3.17 871
West Virginia 806 10 24,992 3.76 941 3.02 755
Wisconsin 430,315 1089 28,488 3.95 1124 3.11 886
United States 2,228,333 5922 27,686 3.90 1079 3.12 865 

Return to the CDCB Home page

DHI Lactation Averages for Jersey  
Table 5. Jersey State and national standardized lactation averages for cows
calving in 2019 with records used in national genetic evaluations

  Records Herds Milk Fat Protein
State (no.) (no.) (lb) (%) (lb) (%) (lb)
Arizona 4,066 4 19,104 4.60 878 3.55 678
Arkansas 94 3 13,309 4.32 575 3.50 465
California 125,629 87 20,942 4.75 995 3.71 777
Colorado 5,978 9 18,977 5.01 951 3.80 722
Connecticut 354 18 17,652 4.83 853 3.60 635
Delaware 147 3 22,462 4.81 1080 3.57 802
Florida 212 4 14,984 4.16 623 3.42 512
Georgia 97 11 17,717 4.74 839 3.43 607
Idaho 18,672 21 20,540 4.73 971 3.64 748
Illinois 2,817 59 19,034 4.90 932 3.67 698
Indiana 625 39 18,416 4.86 895 3.59 660
Iowa 8,507 75 19,077 5.01 955 3.69 703
Kansas 839 14 17,833 4.92 877 3.75 668
Kentucky 887 18 18,376 4.58 841 3.69 677
Louisiana 3 3 16,988 3.86 656 3.40 578
Maine 1,756 27 20,024 5.04 1009 3.60 720
Maryland 1,226 36 17,324 4.85 840 3.53 612
Massachusetts 257 15 17,757 5.17 918 3.69 656
Michigan 1,307 53 20,244 4.68 947 3.56 721
Minnesota 7,388 112 18,307 4.75 870 3.69 675
Mississippi 1,249 11 17,677 4.35 769 3.62 640
Missouri 1,597 29 16,778 4.49 754 3.62 607
Montana 8 2 20,057 5.17 1038 3.89 780
Nebraska 1,939 10 18,765 4.69 880 3.52 661
Nevada 375 3 19,045 4.92 937 3.68 701
New Hampshire 755 21 18,040 4.99 900 3.71 669
New Jersey 136 11 15,261 4.82 736 3.55 542
New Mexico 5,870 5 20,737 4.35 901 3.52 731
New York 8,033 296 19,512 4.96 968 3.59 700
North Carolina 1,974 21 19,764 4.64 917 3.59 709
North Dakota 337 4 23,894 4.47 1068 3.58 856
Ohio 6,273 117 18,984 4.98 946 3.68 698
Oklahoma 455 11 15,150 4.61 699 3.64 552
Oregon 15,552 22 20,683 4.82 998 3.71 767
Pennsylvania 8,777 332 18,764 4.90 919 3.64 684
Rhode Island 19 2 12,192 4.80 586 3.66 447
South Carolina 652 10 17,993 4.69 844 3.58 643
South Dakota 6,412 13 19,308 5.13 990 3.83 739
Tennessee 1,090 18 17,812 4.79 854 3.60 642
Texas 95,077 26 22,294 4.87 1085 3.70 825
Utah 2,634 22 20,342 4.81 978 3.76 764
Vermont 2,554 100 17,432 4.90 854 3.62 631
Virginia 943 25 17,839 4.70 839 3.56 635
Washington 7,499 27 21,431 4.97 1066 3.52 755
West Virginia 229 4 14,226 4.78 680 3.61 514
Wisconsin 18,876 355 19,864 4.97 988 3.63 720
United States 370,176 2108 20,740 4.82 1000 3.68 764 

Return to the CDCB Home page

DHI Lactation Averages for Milking Shorthorn  
Table 6. Milking Shorthorn State and national standardized lactation averages for cows
calving in 2019 with records used in national genetic evaluations

  Records Herds Milk Fat Protein
State (no.) (no.) (lb) (%) (lb) (%) (lb)
Arizona 5 1 12,859 2.98 383 2.99 385
Arkansas 60 1 17,929 3.49 625 3.26 585
California 63 7 28,932 3.87 1121 3.15 911
Colorado 5 1 21,104 3.81 804 3.13 661
Connecticut 1 1 16,700 4.46 745 3.51 587
Delaware 4 1 21,126 3.51 741 3.02 639
Florida 26 2 12,827 3.63 465 3.19 410
Illinois 78 15 20,083 3.77 758 3.09 620
Indiana 39 8 20,047 3.78 757 3.24 650
Iowa 94 18 19,733 3.63 716 3.04 601
Kansas 18 1 18,617 3.65 680 3.06 570
Kentucky 6 4 19,887 3.82 760 3.09 614
Maine 14 6 18,234 3.75 684 2.90 529
Maryland 73 8 17,644 4.02 709 3.17 560
Massachusetts 16 5 16,915 3.63 614 3.12 529
Michigan 14 6 23,358 3.67 856 3.13 732
Minnesota 186 30 20,436 3.94 804 3.13 640
Mississippi 1 1 18,556 3.57 662 2.87 532
Missouri 34 8 15,707 3.67 576 3.16 496
Nebraska 6 1 18,766 3.82 717 3.17 594
New Hampshire 70 5 18,356 3.68 676 3.07 564
New Mexico 2 1 22,929 3.48 798 3.10 712
New York 130 39 17,836 3.65 651 3.03 540
North Dakota 3 1 17,303 3.91 677 3.22 557
Ohio 65 9 15,843 3.58 568 3.08 487
Oklahoma 67 5 16,071 3.90 626 3.17 510
Oregon 4 2 21,746 3.99 868 3.27 710
Pennsylvania 170 43 19,648 3.69 724 3.07 603
South Dakota 12 2 16,668 3.74 624 3.05 508
Tennessee 1 1 14,329 4.79 687 3.39 486
Texas 143 4 20,252 3.96 802 3.17 643
Utah 25 1 13,126 3.87 508 3.13 410
Vermont 26 8 19,280 4.02 775 3.07 591
Virginia 5 1 22,247 3.80 845 3.24 721
Washington 55 2 19,291 4.14 798 3.32 640
Wisconsin 582 74 21,020 3.84 808 3.12 655
United States 2,103 323 19,662 3.81 749 3.12 614 

Return to the CDCB Home page

DHI Lactation Averages Over Time  
Tables 7A-7F. Summary of National Standardized Lactation Averages
for Cows With Records Used in National Genetic Evaluations

  Table 7A. Records (no.)
  Calving year
Breed 1980 1990 2000 2005 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
Ayrshire 13,465 11,576 7,035 5,989 6,045 5,977 5,727 5,559 5,318 5,235 5,077 4,676 4,261 3,764
Brown Swiss 17,236 17,717 15,704 16,029 18,069 18,243 18,379 17,997 18,028 17,911 17,036 16,634 15,485 14,462
Guernsey 38,364 25,805 9,406 7,248 6,144 6,076 5,807 5,532 5,505 5,469 5,258 5,101 4,836 4,207
Holstein 1,109,758 1,720,127 1,624,058 1,650,001 2,020,821 2,103,095 2,157,122 2,175,009 2,227,408 2,291,188 2,318,759 2,330,737 2,307,090 2,228,333
Jersey 63,305 99,416 106,837 128,236 182,137 209,844 229,075 253,850 274,834 296,775 317,697 337,230 361,747 370,176
Milking Shorthorn 2,302 2,684 2,407 2,723 3,091 3,288 3,166 3,126 2,771 2,606 2,558 2,551 2,375 2,103 

Return to the CDCB Home page

 

 
  Table 7B. Milk (lb)
  Calving year
Breed 1980 1990 2000 2005 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
Ayrshire 13,144 14,799 17,389 18,303 18,275 18,295 18,440 18,478 18,918 19,124 19,254 19,221 19,134 19,537
Brown Swiss 14,172 16,250 20,300 21,405 21,857 21,996 22,214 22,130 22,475 22,691 22,657 22,625 22,497 22,737
Guernsey 11,666 13,297 16,043 17,154 17,351 17,349 17,578 17,429 17,622 17,907 17,806 17,946 17,400 17,528
Holstein 17,566 20,178 24,517 25,644 25,757 25,987 26,312 26,639 27,031 27,251 27,441 27,418 27,405 27,686
Jersey 11,437 13,407 17,038 18,087 18,565 19,004 19,359 19,793 20,454 20,592 20,894 20,708 20,583 20,740
Milking Shorthorn 11,560 14,011 16,548 17,582 18,137 18,319 18,131 17,868 18,578 19,122 18,913 18,874 18,851 19,662 

Return to the CDCB Home page

 

 
  Table 7C. Fat (%)
  Calving year
Breed 1980 1990 2000 2005 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
Ayrshire 3.88 3.85 3.86 3.82 3.85 3.84 3.85 3.90 3.91 3.91 3.91 3.94 3.96 3.95
Brown Swiss 4.06 3.98 4.01 4.00 3.97 3.97 4.02 4.06 4.02 4.04 4.06 4.09 4.09 4.07
Guernsey 4.60 4.49 4.46 4.42 4.43 4.41 4.42 4.48 4.52 4.49 4.50 4.51 4.51 4.51
Holstein 3.61 3.61 3.64 3.65 3.65 3.67 3.71 3.73 3.72 3.73 3.78 3.82 3.86 3.90
Jersey 4.84 4.73 4.60 4.62 4.69 4.70 4.75 4.77 4.76 4.77 4.82 4.84 4.83 4.82
Milking Shorthorn 3.69 3.58 3.59 3.58 3.66 3.65 3.67 3.69 3.72 3.74 3.78 3.79 3.81 3.81 

Return to the CDCB Home page

 

 
  Table 7D. Fat (lb)
  Calving year
Breed 1980 1990 2000 2005 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
Ayrshire 510 570 671 700 704 703 711 720 740 747 753 758 758 772
Brown Swiss 576 646 814 856 867 874 894 898 903 918 919 924 919 926
Guernsey 536 598 716 758 769 766 776 781 796 804 802 810 784 790
Holstein 633 729 893 936 941 955 977 993 1005 1017 1037 1048 1058 1079
Jersey 553 634 784 835 870 893 919 944 973 982 1007 1002 994 1000
Milking Shorthorn 426 502 595 630 664 669 666 659 691 716 714 715 719 749 

Return to the CDCB Home page

 

 
  Table 7E. Protein (%)
  Calving year
Breed 1980 1990 2000 2005 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
Ayrshire 3.16 3.13 3.12 3.14 3.14 3.14 3.15 3.15 3.15 3.15 3.16 3.16 3.16
Brown Swiss 3.33 3.31 3.30 3.29 3.31 3.32 3.34 3.34 3.32 3.34 3.35 3.35 3.35
Guernsey 3.30 3.31 3.27 3.26 3.27 3.27 3.29 3.30 3.31 3.32 3.33 3.32 3.33
Holstein 2.94 3.00 3.01 3.03 3.04 3.05 3.06 3.06 3.06 3.08 3.10 3.11 3.12
Jersey 3.60 3.58 3.57 3.60 3.62 3.61 3.63 3.62 3.63 3.65 3.68 3.68 3.68
Milking Shorthorn 3.09 3.10 3.09 3.09 3.11 3.11 3.11 3.10 3.09 3.10 3.11 3.12 3.12 

Return to the CDCB Home page

 

 
  Table 7F. Protein (lb)
  Calving year
Breed 1980 1990 2000 2005 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019
Ayrshire 468 545 571 573 574 580 581 597 602 606 607 604 616
Brown Swiss 541 672 707 719 729 738 739 750 754 756 758 754 762
Guernsey 439 531 561 565 567 575 573 581 592 592 597 578 583
Holstein 592 733 772 781 791 803 816 828 834 845 850 852 865
Jersey 482 610 646 669 688 699 718 741 748 763 762 757 764
Milking Shorthorn 433 512 543 561 570 563 556 576 590 587 587 588 614 

Return to the CDCB Home page

We wish to acknowledge the contribution of the dairy producers who supplied data for this report through their participation in the DHI program and the Dairy Records Processing Centers that processed and relayed the information on to the Council on Dairy Cattle Breeding (CDCB).