Effect of Sodium Bisulfate on Ammonia Levels,
Fly Population, and Manure pH in a Horse Barn

Corinne R. Sweeney, DVM; Sue McDonnell, PhD;
Perry L. Habecker, VMD; and Gail E. Russell, AS

    Sodium bisulfate applied to horse bedding decreased ammonia levels, manure pH, and the number of flies when compared to a control period without sodium bisulfate. Behavior typical of ponies being bothered by flies (tail swishes, head tosses, and kicks or strikes) was also decreased when sodium bisulfate was used.

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