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Washington State University Libraries
Manuscripts, Archives, and Special Collections
Pullman, WA 99164-5610 USA
(509) 335-6691

Archives 260
Washington State Dairy Herd Improvement Associations
Annual Reports, 1932-1996

Annual Reports concerning the Washington State Dairy Herd Improvement Association were transferred to the Washington State University Libraries in Jan. 2004 from Extension Office of Yakima County. They were processed by Michael Evans in April 2004.

Number of containers: 2
Linear feet of shelf space: 1.5


Diary Herd Improvement Associations, commonly called DHIAs, were first formed in the state of Washington in 1916, facilitated by the agricultural extension service.

The idea of a DHIA is keeping records of concerning milk production of dairy cows, tracking individual animals. A group of dairy farmers form an organization, subscribe to the service, employ a party called a tester, and support a small laboratory. Once or twice a month, the farmers weigh the milk produced by individual animals and collect small samples.. The tester conducts lab operations to determine the content of milk fat and other solids, and also assembles the numeric information and provides periodic reports. These "herd book" reports can be ordered so as to list the production of each animal, ranked from highest to lowest. This information guides the farm operator in the selection of which animals to cull and which to use as the parent stock. The process tends to select a high-producing strain. Over time the overall average production level should rise. Since 1916, production per cow has risen dramatically, five- or six-fold.

A DHIA report can also be used for other management purposes, of course.


Reports of county DHIAs include various statistics that show diary production, including averages. The reports also note those animals and herds with the highest production. Reports of the Goat Herd Improvement Association of Washington State are also included, along with two DHIA Herd Books which serve as samples of this type of document.

The annual reports are arranged in alphabetical order by county. Reports that cover the entire state follow these.


Box Folder   Description
Dairy Herd Improvement Association-Annual Reports
11   Grant County, 1979-1994
2   Kittitas County, 1932, 1941-1952
3   Kittitas County, 1960-1961, 1963-1965, 1967, 1969-1975
4   Kittitas County, 1976-1985
5   Kittitas County, 1986-1995
6   Pierce County, 1961-1964, 1966-1973
7   Walla Walla County, 1977-1990, 1992-1994
8   Whatcom County, 1994-1996
9   Yakima County, 1947, 1949-1952, 1954-1961
10   Yakima County, 1962-1971
11   Yakima County, 1972-1973, 1975-1984
12   Yakima County, 1985-1995
13   Washington State, 1946-1947, 1960, 1962-1974
14   Washington State, 1975-1986
15   Washington State, 1987-1994, 1996
Washington State Goat Herd Improvement Association-Annual Reports
16   1980-1981, 1985-1987, 1991-1992
217Washington DHIA Herd Book, 1973
18Washington DHIA Herd Book, 1978