Based on the results of an investigation by Purina Animal Nutrition, the California Horse Racing Board (CHRB) has announced its licensed feed vendors can once again deliver some of the manufacturer’s sweet feed products previously found to contain the drug zilpaterol.
On March 22, the CHRB reported that a number of sweet feed products containing a molasses base produced by Purina at its Turlock, Calif., mill contained zilpaterol (a beta-2 agonist used to promote weight gain in livestock), which is prohibited in racing and many other equestrian sports.
