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Blood worms (Strongylus vulgaris or the large strongyle) feeds on blood by ingesting "bites" from the gastrointestinal mucosa. During their migration in larval stages, they cause damage to the cranial mesenteric artery which supplies blood to the intestine. Blood worms infection can lead to colic, anemia, unthriftiness, weakness and gangrenous enteritis. Fortunately, blood worms are no longer the most common parasite of adult horses since ivermectin was introduced as a common deworming agent.

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10y ago

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