Table 2. 2007 Averages of DHI Cow Herds
by Breed and Category of Testing Plan

  Records Milk Fat Protein
Breed Test Plan Category Herds Cow-years Cow-years per herd (lb) (%) (lb) % Reporting (%) (lb) % Reporting
Ayrshire Official 104 5,381 52 15,765 3.89 614 100 3.18 501 100
  Management 8 375 47 13,239 4.21 600 81 3.14 448 81
  All plans 112 5,756 51 15,601 3.91 613 99 3.17 498 99
Brown Swiss Official 239 13,965 58 18,149 4.06 743 99 3.39 620 98
  Management 17 833 49 16,829 4.06 684 100 3.36 566 99
  All plans 256 14,798 58 18,074 4.06 740 99 3.39 617 98
Guernsey Official 132 6,628 50 15,610 4.52 705 100 3.36 525 99
  Management 29 1,023 35 14,594 4.35 635 100 3.33 486 100
  All plans 161 7,652 48 15,474 4.50 696 100 3.36 520 99
Holstein Official 14,961 3,316,667 222 22,946 3.63 836 99 3.07 705 95
  Management 5,459 607,307 111 21,254 3.75 803 94 3.06 656 91
  All plans 20,420 3,923,973 192 22,685 3.65 831 98 3.07 698 95
Jersey Official 992 184,473 186 16,266 4.61 750 100 3.59 585 99
  Management 140 9,272 66 14,202 4.50 640 98 3.56 507 91
  All plans 1,132 193,745 171 16,168 4.60 745 100 3.59 581 99
Milking Shorthorn Official 36 1,957 54 13,932 3.53 491 100 3.10 432 100
  Management 1 98 98 14,828 3.70 548 100 3.10 460 100
  All plans 37 2,055 56 13,975 3.54 494 100 3.10 434 100
Red and White Official 22 1,164 53 20,086 3.71 746 100 3.04 611 100
  Management 3 131 44 18,935 3.71 702 100 2.99 567 100
  All plans 25 1,294 52 19,970 3.71 741 100 3.04 606 100
Mixed Official 1,116 156,383 140 18,380 3.93 724 98 3.23 596 98
  Management 298 33,037 111 17,176 3.99 686 82 3.19 549 82
  All plans 1,414 189,420 134 18,170 3.94 718 96 3.23 589 95
All breeds Official 17,602 3,686,618 209 22,371 3.68 826 99 3.09 693 95
  Management 5,955 652,076 110 20,925 3.77 795 93 3.07 648 91
  All plans 23,557 4,338,693 184 22,154 3.69 821 98 3.09 687 95 

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