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Extension > Agriculture > Livestock > Horse > Ask an expert > Is a high frequency rodent controller safe to put in my horse barn?

Is a high frequency rodent controller safe to put in my horse barn?

Q: I purchased a high frequency rodent controller (puts out high frequency sounds to deter mice, rats, etc...). I would like to know if it is safe to put in my horse barn? The box says it is safe for "pets", but does not mention horses. Will the high frequency harm my horses or "drive them crazy"?

A: We are not aware of any research that specifically addresses this issue. Have you contacted the manufacture of this product with your question? Horses do hear better than we (humans) do at high frequencies, but so do dogs and cats. If the manufacture says the product is safe for use around horses, we recommend trying the product further away from the horses at first, and then gradually moving it closer if the horses do not seem to react. We would encourage that while trying the product, someone is watching the horses and the horses have a way to evacuate the area. Finally, watch for any behavior or eating changes while using this product and stop using it immediately if you observe any adverse reactions.

By J. Wilson, DVM and E. Malone, DVM, University of Minnesota

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