Soiled Bedding Serves as a Vehicle for Drug Contamination

Researchers found that soiled bedding appears to be a principle vehicle for contamination.

Cleanliness in the stall can equal cleanliness on the drug tests, especially when it comes to sport horses receiving therapeutic medications, according to results from a new project under development by French researchers.

Presented at the 34th Annual Equine Research Day in Paris Feb. 28, the study complements previous research showing that treated horses can contaminate other horses and/or re-contaminate themselves with the same drug even after the medication has been stopped, potentially resulting in positive results on drug tests.

Photo Courtesy Marie-Agnès Popot, PharmD,

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Passionate about horses and science from the time she was riding her first Shetland Pony in Texas, Christa Lesté-Lasserre writes about scientific research that contributes to a better understanding of all equids. After undergrad studies in science, journalism, and literature, she received a master’s degree in creative writing. Now based in France, she aims to present the most fascinating aspect of equine science: the story it creates. Follow Lesté-Lasserre on Twitter @christalestelas.

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