Table 2. Averages of DHI Cow Herds, 2003
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 132 7,093 54 15,560 3.88 603 100 3.17 494 100
  Management 11 425 39 13,932 4.03 561 100 3.18 442 100
  All plans 143 7,518 53 15,468 3.88 601 100 3.17 491 100
Brown Swiss Official 289 14,598 51 17,801 4.03 717 99 3.36 597 99
  Management 20 832 42 16,620 4.16 692 100 3.35 556 100
  All plans 309 15,430 50 17,737 4.04 716 99 3.36 595 99
Guernsey Official 185 8,548 46 14,918 4.52 675 100 3.37 502 99
  Management 41 1,686 41 13,552 4.55 617 100 3.35 454 100
  All plans 226 10,234 45 14,693 4.53 665 100 3.36 494 99
Holstein Official 17,780 3,290,903 185 21,943 3.63 800 98 3.05 671 94
  Management 6,439 674,523 105 20,346 3.75 771 91 3.04 627 87
  All plans 24,219 3,965,426 164 21,671 3.65 795 97 3.05 664 93
Jersey Official 1,074 160,720 150 15,745 4.63 729 100 3.57 563 100
  Management 151 18,438 122 15,802 4.53 718 99 3.55 564 97
  All plans 1,225 179,158 146 15,751 4.62 728 100 3.57 563 99
Milking Shorthorn Official 41 2,290 56 14,134 3.63 512 100 3.10 438 100
  Management 4 303 76 14,748 4.03 595 100 3.24 478 100
  All plans 45 2,593 58 14,206 3.67 522 100 3.12 443 100
Red and White Official 28 1,605 57 19,842 3.66 727 100 3.00 595 100
  Management 5 214 43 19,441 3.70 718 100 2.99 582 100
  All plans 33 1,819 55 19,795 3.67 726 100 3.00 593 100
Mixed Official 1,212 120,981 100 17,643 3.87 687 97 3.19 565 97
  Management 327 27,985 86 16,855 3.86 659 95 3.14 536 95
  All plans 1,539 148,966 97 17,495 3.87 682 97 3.18 560 97
All breeds Official 20,741 3,606,737 174 21,471 3.68 792 98 3.07 661 94
  Management 6,998 724,407 104 20,069 3.77 764 91 3.06 621 88
  All plans 27,739 4,331,143 156 21,236 3.69 787 97 3.07 655 93 

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