Definitions for "DHIA"
(dairy science) Dairy Herd Improvement Association. A nationwide system of performance testing and records processing for dairy producers.
Dairy Herd Improvement Association. An organization with programs and objectives intended to improve production of dairy cattle and profitability of dairy farming and especially to aid dairy farmers in keeping milk production and management records.
Dairy Herd Improvement Associations were organized in the early 20th century. Their mission was to improve dairy production through better breeding. By keeping performance records on many cows, DHIA provide farmers with the information they needed to decide which cows were the best cows for breeding. Today in the U.S., 32 DHI affiliates manage data collection and milk component testing.