DHI Participation as of January 1, 2017
DHI Report K-1

DHI Participation 2016  
Table 1. Dairy cow enrollment in DHI as of January 1, 2017, by test plan

Plan code Plan tag Herds Cows Percentage of DHI cows
00 DHI 446 148,953 3.4
02 DHI-APCS 949 1,058,239 24.0
20 DHIR 367 63,336 1.4
22 DHIR-APCS 234 122,576 2.8
23 DHIR-AP 2,001 344,688 7.8
31 DHI-AP 7,721 2,082,037 47.3
33 DHI-MO 6 5,991 0.1
34 DHI-MO-AP 21 10,254 0.2
40 DHI-OS 567 43,975 1.0
41 DHI-OS-AP 3,127 243,169 5.5
42 DHI-OS-APCS 249 40,908 0.9
43 DHI-OS-MO 27 9,644 0.2
44 DHI-OS-MO-AP 11 2,642 0.1
45 DHI-OS-AC 6 13,740 0.3
70 DHI-SS 17 7,008 0.2
71 DHI-SS-AP 557 153,556 3.5
72 DHI-SS-APCS 56 46,988 1.1
73 DHI-SS-MO 3 860 0.0
74 DHI-SS-MO-AP 7 3,745 0.1
  All Plans 16,372 4,402,309 100.0 

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DHI Participation 2016  
Table 2. Dairy cow enrollment in DHI test plans as of January 1, 2017, by breed

  Ayrshire Brown Swiss Guernsey Holstein
Test plan Herds Cows Herds Cows Herds Cows Herds Cows
DHI 2 43 1 130 3 77 370 132,682
DHI-APCS 0 0 2 225 3 63 806 822,449
DHIR 8 310 12 688 6 287 254 49,201
DHIR-APCS 1 391 6 517 2 168 165 97,980
DHIR-AP 19 871 81 6,587 42 2,232 1,346 254,498
DHI-AP 29 1,386 31 1,592 18 741 6,362 1,743,594
DHI-MO 0 0 0 0 0 0 6 5,991
DHI-MO-AP 0 0 0 0 0 0 19 9,647
Other plans 4 204 9 340 10 380 4,016 478,834
All Plans 63 3,205 142 10,079 84 3,948 13,344 3,594,876

 

 
  Jersey Milking Shorthorn Red and White Mixed
Test plan Herds Cows Herds Cows Herds Cows Herds Cows
DHI 38 9,061 0 0 0 0 32 6,960
DHI-APCS 39 105,204 0 0 0 0 99 130,298
DHIR 56 7,691 3 394 0 0 28 4,765
DHIR-APCS 38 18,018 0 0 0 0 22 5,502
DHIR-AP 233 41,004 15 581 0 0 265 38,915
DHI-AP 309 130,257 4 73 4 330 964 204,064
DHI-MO 0 0 0 0 0 0 0 0
DHI-MO-AP 0 0 0 0 0 0 2 607
Other plans 125 10,471 2 122 0 0 461 75,884
All Plans 838 321,706 24 1,170 4 330 1,873 466,995 

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DHI Participation 2016  
Table 3. Participation of dairy cows in DHI mastitis screening as of January 1, 2017, by State

State Herds Cows Percentage of DHI cows
Alabama 13 2,323 100
Arizona 18 48,055 98
Arkansas 16 2,877 100
California 645 918,256 100
Colorado 42 80,068 99
Connecticut 72 12,760 100
Delaware 21 3,705 100
Florida 20 23,656 68
Georgia 68 23,143 66
Idaho 122 226,277 97
Illinois 291 47,248 99
Indiana 255 37,570 88
Iowa 534 120,173 99
Kansas 123 25,855 82
Kentucky 212 27,595 95
Louisiana 28 4,068 89
Maine 105 14,842 95
Maryland 235 30,851 97
Massachusetts 59 4,977 95
Michigan 519 189,201 95
Minnesota 1,470 244,716 99
Mississippi 28 4,579 100
Missouri 227 33,190 100
Montana 18 3,562 83
Nebraska 74 31,339 100
Nevada 7 5,164 88
New Hampshire 61 8,120 100
New Jersey 36 3,027 87
New Mexico 15 54,359 99
New York 1,478 343,592 94
North Carolina 95 23,423 94
North Dakota 17 5,830 100
Ohio 651 104,094 96
Oklahoma 48 6,533 100
Oregon 123 46,698 100
Pennsylvania 3,519 325,285 96
Puerto Rico 64 13,266 97
Rhode Island 5 297 100
South Carolina 32 7,463 98
South Dakota 82 38,741 99
Tennessee 82 11,864 94
Texas 95 145,585 92
Utah 91 29,105 82
Vermont 288 52,449 97
Virginia 273 54,827 97
Washington 121 65,221 93
West Virginia 26 2,717 94
Wisconsin 3,696 756,656 99
United States 16,120 4,265,202 97 

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DHI Participation 2016  
Table 4. Dairy cow enrollment in DHI as of January 1, 2017, by State and test-plan category

breed=ALL

  Official Management All Plans  
State Herds Cows Herds Cows Herds Cows Percentage of cow population in DHI
Alabama 11 2,086 2 237 13 2,323 33
Alaska
Arizona 17 41,129 2 7,764 19 48,893 25
Arkansas 11 2,185 5 692 16 2,877 48
California 629 895,793 17 23,343 646 919,136 52
Colorado 41 79,795 2 992 43 80,787 53
Connecticut 71 12,717 1 43 72 12,760 67
Delaware 18 3,613 3 92 21 3,705 74
Florida 18 24,063 19 10,888 37 34,951 29
Georgia 64 25,976 16 8,838 80 34,814 42
Hawaii
Idaho 116 228,151 7 4,420 123 232,571 39
Illinois 254 44,313 38 3,539 292 47,852 51
Indiana 184 33,923 74 8,532 258 42,455 23
Iowa 447 106,651 91 14,939 538 121,590 57
Kansas 101 28,039 28 3,461 129 31,500 21
Kentucky 61 11,691 159 17,222 220 28,913 51
Louisiana 17 2,467 15 2,079 32 4,546 38
Maine 105 15,069 4 572 109 15,641 52
Maryland 204 27,794 35 3,981 239 31,775 68
Massachusetts 56 4,870 5 365 61 5,235 46
Michigan 483 182,346 53 16,143 536 198,489 47
Minnesota 1,236 222,940 237 23,709 1,473 246,649 54
Mississippi 19 3,296 9 1,283 28 4,579 48
Missouri 125 14,346 102 18,844 227 33,190 38
Montana 16 3,935 3 364 19 4,299 31
Nebraska 55 26,526 19 4,813 74 31,339 52
Nevada 8 5,848 0 0 8 5,848 19
New Hampshire 57 7,817 5 316 62 8,133 60
New Jersey 37 3,479 0 0 37 3,479 54
New Mexico 16 55,142 0 0 16 55,142 17
New York 1,251 343,575 267 21,751 1,518 365,326 59
North Carolina 78 19,551 23 5,442 101 24,993 56
North Dakota 13 3,774 4 2,056 17 5,830 36
Ohio 491 80,646 179 27,640 670 108,286 41
Oklahoma 25 3,354 23 3,179 48 6,533 19
Oregon 118 45,872 5 826 123 46,698 38
Pennsylvania 1,924 235,919 1,619 102,032 3,543 337,951 64
Puerto Rico 67 13,728 0 0 67 13,728
Rhode Island 5 297 0 0 5 297 37
South Carolina 30 6,570 4 1,065 34 7,635 51
South Dakota 53 14,891 30 24,377 83 39,268 34
Tennessee 80 11,916 6 689 86 12,605 31
Texas 90 131,692 23 26,924 113 158,616 32
Utah 83 27,924 13 7,665 96 35,589 39
Vermont 229 44,865 66 9,389 295 54,254 42
Virginia 217 47,239 64 9,040 281 56,279 64
Washington 118 62,985 5 7,082 123 70,067 25
West Virginia 25 2,672 2 233 27 2,905 36
Wisconsin 2,371 622,604 1,343 139,374 3,714 761,978 60
Wyoming
United States 11,745 3,836,074 4,627 566,235 16,372 4,402,309 47 

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Table 4. Dairy cow enrollment in DHI as of January 1, 2017, by State and test-plan category

breed=Ayrshire

  Official Management All Plans
State Herds Cows Herds Cows Herds Cows
Connecticut 1 93 1 93
Illinois 1 29 1 29
Iowa 3 137 3 137
Maine 3 166 3 166
Maryland 2 143 2 143
Massachusetts 2 30 2 30
Michigan 1 6 1 6
Minnesota 3 201 3 201
Missouri 1 100 1 100
New Mexico 1 391 1 391
New York 10 490 1 43 11 533
Ohio 7 199 7 199
Pennsylvania 6 382 1 9 7 391
Vermont 4 200 1 52 5 252
Washington 2 89 2 89
West Virginia 1 53 1 53
Wisconsin 12 392 12 392
United States 59 3,001 4 204 63 3,205 

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Table 4. Dairy cow enrollment in DHI as of January 1, 2017, by State and test-plan category

breed=Brown Swiss

  Official Management All Plans
State Herds Cows Herds Cows Herds Cows
California 7 176 7 176
Delaware 1 36 1 36
Georgia 1 164 1 164
Idaho 1 63 1 63
Illinois 4 172 4 172
Indiana 5 602 5 602
Iowa 11 1,070 1 35 12 1,105
Kansas 1 94 1 94
Kentucky 2 82 1 25 3 107
Maine 2 44 2 44
Maryland 4 128 4 128
Massachusetts 2 146 2 146
Minnesota 12 1,312 12 1,312
Missouri 5 454 5 454
Montana 1 102 1 102
New Hampshire 1 52 1 52
New York 11 983 11 983
North Carolina 1 78 1 78
North Dakota 1 31 1 31
Ohio 12 841 12 841
Oklahoma 1 20 1 20
Oregon 4 185 4 185
Pennsylvania 5 352 1 17 6 369
South Dakota 1 45 1 45
Tennessee 1 153 1 153
Utah 1 75 1 75
Vermont 2 250 2 250
Washington 3 197 3 197
Wisconsin 32 1,927 4 168 36 2,095
United States 133 9,739 9 340 142 10,079 

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Table 4. Dairy cow enrollment in DHI as of January 1, 2017, by State and test-plan category

breed=Guernsey

  Official Management All Plans
State Herds Cows Herds Cows Herds Cows
California 4 147 4 147
Connecticut 1 16 1 16
Illinois 2 80 2 80
Indiana 2 85 1 2 3 87
Iowa 5 540 5 540
Kansas 1 66 1 66
Maine 2 39 2 39
Maryland 3 161 3 161
Massachusetts 1 48 1 48
Minnesota 8 206 8 206
Missouri 3 173 3 173
New York 1 122 1 122
Ohio 6 150 6 150
Oregon 1 89 1 89
Pennsylvania 9 320 1 6 10 326
South Dakota 1 46 1 46
Tennessee 1 78 1 78
Vermont 2 100 2 100
Virginia 1 45 1 28 2 73
Washington 5 216 5 216
West Virginia 1 32 1 32
Wisconsin 15 857 6 296 21 1,153
United States 74 3,568 10 380 84 3,948 

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Table 4. Dairy cow enrollment in DHI as of January 1, 2017, by State and test-plan category

breed=Holstein

  Official Management All Plans
State Herds Cows Herds Cows Herds Cows
Alabama 5 1,019 2 237 7 1,256
Arizona 12 32,433 1 7,385 13 39,818
Arkansas 6 913 2 309 8 1,222
California 451 693,567 12 18,039 463 711,606
Colorado 35 68,395 2 992 37 69,387
Connecticut 45 10,810 1 43 46 10,853
Delaware 14 3,228 2 68 16 3,296
Florida 17 23,940 10 6,313 27 30,253
Georgia 56 22,373 13 5,729 69 28,102
Idaho 82 173,948 7 4,420 89 178,368
Illinois 207 36,913 34 2,878 241 39,791
Indiana 136 29,393 49 6,796 185 36,189
Iowa 335 82,061 73 11,543 408 93,604
Kansas 74 24,462 20 2,433 94 26,895
Kentucky 40 9,518 139 15,799 179 25,317
Louisiana 13 1,877 14 1,919 27 3,796
Maine 64 11,545 4 572 68 12,117
Maryland 156 23,450 32 3,494 188 26,944
Massachusetts 33 3,623 2 207 35 3,830
Michigan 418 167,247 47 12,983 465 180,230
Minnesota 1,006 185,844 200 20,493 1,206 206,337
Mississippi 7 1,445 4 485 11 1,930
Missouri 83 10,166 70 11,382 153 21,548
Montana 14 3,494 2 261 16 3,755
Nebraska 41 18,954 13 3,439 54 22,393
Nevada 5 4,121 5 4,121
New Hampshire 38 6,434 3 207 41 6,641
New Jersey 26 2,830 26 2,830
New Mexico 14 50,185 14 50,185
New York 1,038 319,360 237 20,423 1,275 339,783
North Carolina 51 14,086 16 3,932 67 18,018
North Dakota 9 3,432 4 2,056 13 5,488
Ohio 349 61,145 144 23,673 493 84,818
Oklahoma 10 1,383 17 2,664 27 4,047
Oregon 56 22,119 1 28 57 22,147
Pennsylvania 1,632 207,756 1,502 92,705 3,134 300,461
Puerto Rico 52 11,309 52 11,309
Rhode Island 1 144 1 144
South Carolina 16 3,746 3 1,041 19 4,787
South Dakota 41 12,201 25 18,306 66 30,507
Tennessee 59 9,872 3 356 62 10,228
Texas 62 32,225 15 19,336 77 51,561
Utah 63 18,837 10 7,270 73 26,107
Vermont 140 37,128 33 6,763 173 43,891
Virginia 181 40,361 52 7,599 233 47,960
Washington 70 45,168 5 7,082 75 52,250
West Virginia 16 1,681 1 127 17 1,808
Wisconsin 2,049 569,901 1,190 127,047 3,239 696,948
United States 9,328 3,116,042 4,016 478,834 13,344 3,594,876 

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Table 4. Dairy cow enrollment in DHI as of January 1, 2017, by State and test-plan category

breed=Jersey

  Official Management All Plans
State Herds Cows Herds Cows Herds Cows
Alabama 1 297 1 297
Arizona 3 4,477 3 4,477
Arkansas 1 98 1 97 2 195
California 92 114,174 3 2,277 95 116,451
Connecticut 5 182 5 182
Delaware 1 162 1 162
Florida 1 123 1 123
Georgia 2 467 2 467
Idaho 14 10,100 14 10,100
Illinois 15 2,855 1 137 16 2,992
Indiana 7 553 3 117 10 670
Iowa 21 10,688 21 10,688
Kansas 11 1,262 3 249 14 1,511
Kentucky 11 1,224 2 208 13 1,432
Louisiana 1 49 1 49
Maine 7 1,396 7 1,396
Maryland 13 808 13 808
Massachusetts 5 479 5 479
Michigan 9 841 9 841
Minnesota 25 4,024 3 143 28 4,167
Mississippi 6 1,233 6 1,233
Missouri 12 1,550 2 121 14 1,671
Nebraska 2 474 1 34 3 508
Nevada 2 1,161 2 1,161
New Hampshire 10 859 1 5 11 864
New Jersey 5 254 5 254
New Mexico 1 4,566 1 4,566
New York 50 4,546 6 206 56 4,752
North Carolina 10 2,045 2 641 12 2,686
Ohio 64 8,258 17 907 81 9,165
Oklahoma 8 646 8 646
Oregon 40 16,634 2 417 42 17,051
Pennsylvania 66 6,953 34 1,454 100 8,407
Rhode Island 1 42 1 42
South Carolina 7 1,484 1 24 8 1,508
South Dakota 5 693 1 192 6 885
Tennessee 15 1,425 15 1,425
Texas 15 81,651 15 81,651
Utah 12 4,577 1 181 13 4,758
Vermont 40 2,298 12 1,338 52 3,636
Virginia 7 1,223 2 267 9 1,490
Washington 17 1,434 17 1,434
West Virginia 1 312 1 312
Wisconsin 72 12,658 27 1,456 99 14,114
United States 713 311,235 125 10,471 838 321,706 

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Table 4. Dairy cow enrollment in DHI as of January 1, 2017, by State and test-plan category

breed=Milking Shorthorn

  Official Management All Plans
State Herds Cows Herds Cows Herds Cows
Arizona 1 216 1 216
Iowa 1 47 1 47
Kansas 1 26 1 26
Maine 1 39 1 39
Maryland 1 68 1 68
Massachusetts 1 28 1 28
Minnesota 2 41 2 41
Missouri 1 114 1 114
New York 1 14 1 14
Ohio 2 47 2 47
Oklahoma 1 54 1 107 2 161
Pennsylvania 1 23 1 23
South Dakota 1 30 1 30
Utah 1 35 1 35
Washington 1 143 1 143
Wisconsin 5 123 1 15 6 138
United States 22 1,048 2 122 24 1,170 

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Table 4. Dairy cow enrollment in DHI as of January 1, 2017, by State and test-plan category

breed=Red and White

  Official Management All Plans
State Herds Cows Herds Cows Herds Cows
Minnesota 2 180 2 180
Wisconsin 2 150 2 150
United States 4 330 4 330 

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DHI Participation 2016  
Table 5. Testing characteristics for cow herds tested between October and December 2016 by State,

  Cow Test Days
State Herds Cows Test days/
herd-year		 Supervised
(%)		 Sampled
(%)		 All milkings weighed
(%)		 All milkings sampled
(%)		 >1 Day recorded
(%)		 3X Milking
(%)
Alabama 13 1,928 11.8 85.9 99.5 1.4 0.0 18.8 0.0
Arizona 21 41,367 11.7 100.0 100.0 48.4 6.4 3.2 74.1
Arkansas 14 2,530 10.3 95.4 100.0 0.0 0.0 11.3 0.0
California 651 899,098 11.6 99.9 99.8 30.2 4.6 6.7 25.4
Colorado 33 51,352 11.5 100.0 97.4 74.4 13.0 42.2 95.2
Connecticut 71 12,938 9.9 99.6 100.0 15.7 1.7 7.7 42.0
Delaware 22 3,728 11.6 96.8 91.6 19.1 0.0 40.4 16.3
Florida 40 38,213 11.2 87.1 72.4 53.2 0.0 30.2 45.5
Georgia 84 35,556 10.7 98.9 67.8 32.5 1.3 11.0 49.6
Idaho 126 183,192 11.2 98.1 98.2 69.7 12.9 6.7 63.6
Illinois 301 47,684 10.0 94.3 97.5 24.0 5.7 12.1 35.0
Indiana 272 45,953 9.4 89.4 91.9 29.4 8.0 18.1 49.2
Iowa 559 123,120 10.1 94.6 97.4 30.3 0.8 20.4 54.3
Kansas 121 20,503 10.0 87.3 91.2 21.3 2.3 15.7 40.1
Kentucky 214 29,304 9.0 86.6 95.9 39.3 3.9 28.8 41.8
Louisiana 35 4,996 9.0 99.5 93.2 19.7 0.0 14.8 0.0
Maine 110 15,472 11.8 93.8 97.0 40.5 5.1 5.6 31.5
Maryland 236 31,409 11.0 94.2 98.0 31.8 8.7 20.9 23.2
Massachusetts 59 5,243 11.0 96.9 99.3 11.7 10.1 1.4 7.4
Michigan 548 185,705 10.7 97.1 86.3 22.8 2.8 20.2 58.2
Minnesota 1,500 248,101 11.0 90.5 98.7 19.1 2.6 15.0 42.1
Mississippi 26 4,509 9.1 98.8 99.9 7.2 0.0 5.5 14.1
Missouri 232 34,271 10.7 90.5 99.1 12.8 0.6 8.5 21.6
Montana 19 4,758 8.9 89.4 100.0 69.4 32.2 48.2 37.7
Nebraska 79 30,237 10.8 87.6 93.8 13.5 0.2 14.9 63.6
Nevada 10 6,710 9.5 100.0 100.0 43.6 20.0 9.2 51.0
New Hampshire 63 8,532 10.7 99.5 92.4 18.6 4.4 3.0 13.0
New Jersey 37 3,391 10.7 92.6 91.3 27.0 4.2 22.8 13.2
New Mexico 15 50,004 10.9 99.8 98.4 52.9 24.0 0.0 37.3
New York 1,515 360,133 10.9 93.5 95.7 29.3 2.4 17.3 64.9
North Carolina 99 25,555 10.8 86.7 98.5 44.4 0.0 26.4 55.8
North Dakota 20 6,226 10.7 49.1 98.7 34.8 0.0 36.1 54.8
Ohio 685 112,155 10.3 83.0 96.1 27.5 12.8 10.4 45.4
Oklahoma 48 6,477 9.4 95.3 100.0 3.7 1.7 0.0 12.8
Oregon 125 47,327 10.3 99.0 99.8 34.0 20.8 7.2 23.1
Pennsylvania 3,532 339,206 11.3 71.2 96.7 22.2 2.3 15.6 25.2
Puerto Rico 68 13,379 11.7 100.0 100.0 100.0 0.0 0.0 0.0
Rhode Island 5 297 9.3 100.0 100.0 41.5 0.0 46.7 0.0
South Carolina 35 8,136 9.7 97.1 93.0 33.5 0.2 21.2 3.8
South Dakota 85 36,863 10.8 90.0 98.8 33.1 1.4 18.2 73.8
Tennessee 90 14,513 9.0 97.0 95.7 26.3 0.1 21.4 26.4
Texas 121 111,064 10.6 95.0 78.3 53.0 0.1 2.5 23.4
Utah 99 36,509 9.4 87.8 100.0 72.8 49.2 30.3 57.8
Vermont 299 54,952 10.5 93.6 94.4 21.2 7.8 6.8 49.2
Virginia 290 58,766 10.1 93.9 94.3 32.0 1.2 20.9 37.2
Washington 129 78,564 11.0 93.1 100.0 61.5 15.7 16.7 47.0
West Virginia 26 2,855 10.9 84.8 95.6 25.6 6.1 24.9 14.5
Wisconsin 3,654 734,726 11.4 84.3 98.1 27.5 3.5 16.5 59.5
United States 16,436 4,217,507 11.0 91.4 96.5 32.3 5.1 13.5 44.4 

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DHI Participation 2016  
Table 6. Dairy goat enrollment in DHI as of January 1, 2017, by State and test-plan category

  Official Management All Plans
State Herds Does Herds Does Herds Does
Alabama 4 54 0 0 4 54
Alaska 1 6 0 0 1 6
Arizona 14 130 1 10 15 140
Arkansas 4 66 1 7 5 73
California 59 3,155 14 1,011 73 4,166
Colorado 3 45 2 18 5 63
Connecticut 2 22 0 0 2 22
Florida 11 93 5 41 16 134
Georgia 10 67 5 78 15 145
Idaho 15 185 2 74 17 259
Illinois 3 40 7 454 10 494
Indiana 6 123 8 92 14 215
Iowa 9 461 3 335 12 796
Kansas 8 101 1 3 9 104
Kentucky 6 95 3 16 9 111
Louisiana 1 8 0 0 1 8
Maine 10 94 0 0 10 94
Maryland 8 484 7 61 15 545
Massachusetts 6 83 0 0 6 83
Michigan 8 62 7 36 15 98
Minnesota 18 1,153 7 168 25 1,321
Mississippi 3 24 4 25 7 49
Missouri 12 126 9 2,472 21 2,598
Montana 5 34 0 0 5 34
Nebraska 1 5 1 16 2 21
New Hampshire 3 27 1 2 4 29
New Jersey 7 78 2 22 9 100
New Mexico 3 37 1 10 4 47
New York 6 511 4 27 10 538
North Carolina 10 175 11 97 21 272
Ohio 11 215 6 53 17 268
Oklahoma 9 119 8 125 17 244
Oregon 40 1,020 19 136 59 1,156
Pennsylvania 10 543 5 117 15 660
Tennessee 6 123 5 63 11 186
Texas 14 198 14 196 28 394
Utah 5 218 3 24 8 242
Vermont 2 550 3 726 5 1,276
Virginia 8 99 13 98 21 197
Washington 43 610 22 189 65 799
West Virginia 1 14 3 29 4 43
Wisconsin 24 1,826 11 1,393 35 3,219
Wyoming 7 61 4 36 11 97
United States 436 13,140 222 8,260 658 21,400 

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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).