Table 3. Participation of dairy cows in DHI mastitis screening as of January 1, 2002, by state.

State Herds Cows Percentage of DHI cows
Alabama 43 6,655 75
Alaska 0 0 0
Arizona 49 69,061 78
Arkansas 67 8,193 98
California 1,068 846,722 94
Colorado 60 34,374 81
Connecticut 102 11,861 90
Delaware 36 4,018 88
Florida 32 27,189 38
Georgia 150 33,118 61
Hawaii 1 409 29
Idaho 201 114,078 99
Illinois 596 51,743 99
Indiana 474 45,795 98
Iowa 1,177 102,571 99
Kansas 286 47,013 99
Kentucky 254 23,451 90
Louisiana 100 12,488 75
Maine 136 11,748 79
Maryland 391 38,862 98
Massachusetts 109 10,278 93
Michigan 904 136,499 90
Minnesota 3,112 262,091 98
Mississippi 67 10,897 90
Missouri 498 45,436 99
Montana 54 7,368 100
Nebraska 219 31,325 100
Nevada 19 9,663 100
New Hampshire 98 10,029 92
New Jersey 73 6,832 95
New Mexico 32 48,631 99
New York 2,354 284,518 87
North Carolina 209 33,104 85
North Dakota 69 7,006 99
Ohio 1,034 101,178 97
Oklahoma 113 15,097 95
Oregon 274 55,309 100
Pennsylvania 4,607 331,887 97
Puerto Rico 151 36,116 87
Rhode Island 6 429 100
South Carolina 79 15,121 93
South Dakota 227 24,207 93
Tennessee 230 27,231 81
Texas 220 104,130 88
Utah 208 44,792 97
Vermont 445 51,260 88
Virgin Islands 0 0 0
Virginia 489 66,373 95
Washington 248 71,298 99
West Virginia 59 6,452 97
Wisconsin 6,941 579,516 99
Wyoming 6 1,191 100
United States 28,377 3,924,613 93