Parasite Egg Shedding on Central Kentucky Horse Farms

Study data showed the benefit of establishing strongyle egg counts to determine the need for treatment.

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Researchers from the University of Kentucky Gluck Equine Research Center recently conducted a study on strongyle parasite egg count values in horses on 25 Central Kentucky farms. Data from the study showed the benefit of establishing strongyle egg counts to determine the need for treatment.

The trend for parasite control in horses has long been to deworm on a frequent basis, although it is well-known that this might lead to widespread drug resistance. Typically, owners treat herds without first performing parasite egg counts to help determine which individual horses need treatment.

Therefore, the researchers aimed to investigate the strongyle egg count status on a large number of horses on a regular deworming program, said Gene Lyons, PhD, professor in classical parasitology at the Gluck Center.

A total of 1,300 mares of various ages participated in the study (most were Thoroughbreds, while the rest were Standardbred and mixed light breeds). The goal was to establish a strongyle egg count profile on each mare based upon age, number of egg count positives, and level of egg shedding

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