Table 2. 2012 Averages of DHI cow herds by breed and test-plan category

  Records Milk Fat Protein
Breed Test Plan Category Herds Cow-years Cow-years per herd (lb) (%) (lb) % Reporting (%) (lb) % Reporting
Ayrshire Official 77 4,236 55 15,368 3.86 594 100 3.18 488 100
  Management 3 190 63 18,405 4.64 853 100 3.09 570 100
  All plans 80 4,425 55 15,498 3.90 605 100 3.17 492 100
Brown Swiss Official 166 11,055 67 18,786 4.11 771 100 3.41 640 100
  Management 11 625 57 17,235 4.15 716 100 3.41 587 100
  All plans 177 11,680 66 18,703 4.11 768 100 3.41 637 100
Guernsey Official 89 4,409 50 15,618 4.55 711 100 3.37 526 98
  Management 11 390 35 14,087 4.51 636 100 3.39 478 100
  All plans 100 4,799 48 15,494 4.55 705 100 3.37 522 99
Holstein Official 11,773 3,255,104 276 24,092 3.65 882 99 3.08 743 97
  Management 4,595 521,839 114 21,917 3.74 822 95 3.06 671 93
  All plans 16,368 3,776,943 231 23,791 3.66 874 98 3.08 734 97
Jersey Official 849 235,446 277 17,152 4.77 818 100 3.64 624 100
  Management 135 8,926 66 13,886 4.79 665 99 3.61 505 94
  All plans 984 244,372 248 17,032 4.77 812 100 3.64 620 99
Milking Shorthorn Official 30 1,729 58 14,158 3.61 511 100 3.12 442 100
  Management 1 104 104 16,864 3.53 595 100 3.14 529 100
  All plans 31 1,832 59 14,311 3.60 516 100 3.12 447 100
Red and White Official 15 1,121 75 20,872 3.67 765 100 3.05 637 100
  Management 1 54 54 17,468 4.01 700 100 3.06 534 100
  All plans 16 1,174 73 20,716 3.68 762 100 3.05 633 100
Mixed Official 1,473 300,744 204 20,349 3.91 799 99 3.24 660 99
  Management 458 68,261 149 18,085 4.00 718 89 3.21 577 89
  All plans 1,931 369,005 191 19,930 3.93 785 97 3.23 646 97
All breeds Official 14,472 3,813,842 264 23,328 3.72 871 99 3.12 728 98
  Management 5,215 600,388 115 21,350 3.78 808 94 3.08 658 93
  All plans 19,687 4,414,231 224 23,059 3.73 862 98 3.11 719 97 

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