Table 8. Numbers of records and national standardized lactation averages by breed for cows calving in 1970, 1980, 1990, 1995-99 and eligible for use in genetic evaluations. |
Breed | 1970 | 1980 | 1990 | 1995 | 1996 | 1997 | 1998 | 1999 |
Records (no.) | ||||||||
Ayrshire | 12,729 | 13,465 | 11,576 | 9,526 | 8,824 | 8,176 | 7,617 | 7,399 |
Brown Swiss | 13,764 | 17,236 | 17,717 | 17,721 | 16,977 | 16,245 | 15,499 | 15,677 |
Guernsey | 56,828 | 38,364 | 25,805 | 15,420 | 13,454 | 11,944 | 10,796 | 10,273 |
Holstein | 588,748 | 1,109,758 | 1,720,127 | 1,769,002 | 1,722,958 | 1,701,669 | 1,641,948 | 1,668,927 |
Jersey | 51,410 | 63,305 | 99,416 | 105,672 | 102,559 | 100,213 | 99,853 | 104,460 |
Milking Shorthorn | 1,561 | 2,320 | 2,684 | 2,662 | 2,483 | 2,445 | 2,326 | 2,436 |
Red and White | . . . | 900 | 5,588 | 6,281 | 5,673 | 5,242 | 4,595 | 4,297 |
Milk (lb) | ||||||||
Ayrshire | 11,971 | 13,144 | 14,799 | 15,684 | 15,647 | 16,611 | 16,932 | 17,424 |
Brown Swiss | 12,866 | 14,172 | 16,250 | 17,493 | 17,818 | 18,782 | 19,386 | 20,148 |
Guernsey | 10,426 | 11,666 | 13,297 | 14,051 | 14,177 | 15,132 | 15,546 | 15,963 |
Holstein | 15,281 | 17,566 | 20,178 | 21,618 | 21,926 | 23,143 | 23,675 | 24,380 |
Jersey | 9,618 | 11,437 | 13,407 | 14,842 | 15,097 | 15,838 | 16,294 | 16,940 |
Milking Shorthorn | 10,391 | 11,560 | 14,011 | 15,341 | 15,464 | 16,007 | 16,109 | 16,704 |
Red and White | . . . | 16,470 | 18,8832 | 20,161 | 20,310 | 21,423 | 22,019 | 22,732 |
Fat (%) | ||||||||
Ayrshire | 3.93 | 3.88 | 3.85 | 3.86 | 3.86 | 3.86 | 3.86 | 3.87 |
Brown Swiss | 4.08 | 4.06 | 3.98 | 4.01 | 4.01 | 4.01 | 3.98 | 4.01 |
Guernsey | 4.68 | 4.60 | 4.49 | 4.49 | 4.48 | 4.47 | 4.44 | 4.47 |
Holstein | 3.66 | 3.61 | 3.61 | 3.64 | 3.63 | 3.62 | 3.63 | 3.65 |
Jersey | 5.06 | 4.84 | 4.73 | 4.64 | 4.64 | 4.64 | 4.62 | 4.61 |
Milking Shorthorn | 3.70 | 3.69 | 3.58 | 3.58 | 3.58 | 3.59 | 3.55 | 3.57 |
Red and White | . . . | 3.62 | 3.67 | 3.68 | 3.69 | 3.66 | 3.64 | 3.64 |
Fat (lb) | ||||||||
Ayrshire | 470 | 510 | 570 | 605 | 605 | 642 | 653 | 674 |
Brown Swiss | 525 | 576 | 646 | 701 | 715 | 752 | 771 | 807 |
Guernsey | 488 | 536 | 598 | 630 | 635 | 676 | 690 | 713 |
Holstein | 559 | 633 | 729 | 786 | 798 | 838 | 859 | 890 |
Jersey | 487 | 553 | 634 | 689 | 700 | 734 | 753 | 781 |
Milking Shorthorn | 384 | 426 | 502 | 549 | 554 | 574 | 572 | 596 |
Red and White | . . . | 596 | 692 | 742 | 750 | 785 | 801 | 828 |
Protein (%) | ||||||||
Ayrshire | . . . | . . . | 3.16 | 3.13 | 3.13 | 3.12 | 3.11 | 3.13 |
Brown Swiss | . . . | . . . | 3.33 | 3.32 | 3.32 | 3.32 | 3.30 | 3.31 |
Guernsey | . . . | . . . | 3.30 | 3.27 | 3.29 | 3.30 | 3.29 | 3.31 |
Holstein | . . . | . . . | 2.94 | 2.94 | 2.94 | 2.96 | 2.96 | 2.99 |
Jersey | . . . | . . . | 3.60 | 3.56 | 3.56 | 3.55 | 3.55 | 3.57 |
Milking Shorthorn | . . . | . . . | 3.09 | 3.07 | 3.06 | 3.07 | 3.06 | 3.09 |
Red and White | . . . | . . . | 2.95 | 2.94 | 2.95 | 2.97 | 2.96 | 2.97 |
Protein (lb) | ||||||||
Ayrshire | . . . | . . . | 468 | 491 | 490 | 518 | 527 | 545 |
Brown Swiss | . . . | . . . | 541 | 581 | 592 | 623 | 639 | 667 |
Guernsey | . . . | . . . | 439 | 460 | 466 | 499 | 511 | 528 |
Holstein | . . . | . . . | 592 | 636 | 646 | 683 | 701 | 727 |
Jersey | . . . | . . . | 482 | 529 | 537 | 562 | 579 | 605 |
Milking Shorthorn | . . . | . . . | 433 | 471 | 474 | 492 | 493 | 516 |
Red and White | . . . | . . . | 555 | 594 | 599 | 637 | 650 | 675 |