Although uncommon in North American horses, monitor pregnant mares to avoid abortion and stillbirth due to toxicant exposure.
Research shows resistance among cyathostomins (small strongyles) to the three main groups of anthelmintic (antiparasitic) drugs commonly used to deworm horses.
Move pregnant mares from areas where wild cherry trees are abundant to minimize caterpillar exposure; digestion of the insects can cause early- and late-term foal losses or weak foals.
Enrollment is now open for the University of Kentucky’s Pasture Evaluation Program
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