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. Authors’ address: New Bolton Center, University of Pennsylvania, 382 West Street Rd., Kennett Square, PA 19348. © 1996 AAEP.