10/31/2026
What’s scarier than Halloween? Anthelminthic resistance! Did you know that horses should be dewormed using a targeted approach, rather than on a regular schedule? In order to determine your horses parasite load, your vet can perform a f***l egg count (FEC) and advise you when to deworm. Generally (but not always!), horses don’t need to be dewormed more than twice a year. It is also advised to rotate the dewormer you are using in order to target parasites that are resistant to certain active ingredients. Don’t remember what you used last? No problem! If you’re in the Greenhawk system, we can look it up!
For more information regarding deworming, parasites and parasite resistance, visit https://madbarn.ca/de-worming-your-horse/