More than 800 readers of responded to a poll asking, "What would make you stop using a rotational deworming program?"

results of poll on rotational deworming

Results were as follows: 

  • Proof that it isn't necessary/working on my farm: 42.31% (341)

  • A recommendation from my vet: 24.94% (201)

  • Nothing, I think rotating dewormers is best for my horse: 13.77% (111)

  • I don't currently rotate dewormers: 12.53% (101)

  • Other: 6.45% (52)

Readers shared what their thoughts on rotational deworming in the comments below.

Results of weekly polls from are published in The Horse Health E-Newsletter. Published every week, this e-newsletter offers news on diseases, veterinary research, health events, and in-depth articles on common equine health conditions and what you can do to recognize, avoid, or treat them. Sign up for our e-newsletters using the form above or on our e-newsletter page.  

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Poll sponsored by Merial.