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Parasites: External Parasites

Last Updated: July 16, 2008

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External parasites, also known as ectoparasites, are parasites that live on the skin surface of an animal - in this case, the horse. The primary ectoparasites of horses are houseflies, stable flies, mosquitoes, and, to a lesser extent, horseflies and deer flies.

For more information, see Common Ectoparasites in Horses.

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