New Dexamethasone rule starts July 1
Beginning in 2025, The American Quarter Horse Association (AQHA) lowered the maximum permitted plasma concentration of dexamethasone from the 2024 threshold of 3.0 nanograms per milliliter to 0.5 nanograms per milliliter. The AQHA Executive Committee approved this rule change, which was recommended by the AQHA Animal Welfare Commission, in August of 2024. Dexamethasone is a fast-acting […]