See the latest findings on parasites, resistance and new deworming strategies from the leading thinkers in equine parasitology.
“Worm wars: Selective treatment is the new deworming strategy, especially as the threat of resistance intensifies.” Dr. Ray Kaplan, DVM, PhD.
These Ain’t Your Father’s Parasites: Dewormer Resistance and New Strategies for Parasite Control in Horses
However, recent studies demonstrate that resistance and multiple-drug resistance in equine parasites is extremely common, but few horse owners or veterinarians take this into account when making treatment decisions. Dr. Ray Kaplan, DVM, PhD.
Equine Parasites: 6 Tips on Learning to Live With Worms
A nice simple step-by-step look at the problem and solution. The basic idea is that we need to use dewormers far less often and more selectively to preserve their value and, yes, even learn to live with the worms to some degree. Craig R. Reinemeyer, DVM, PhD.
Rational Approaches to Equine Parasite Control
The changing patterns of resistance among target nematodes lend an element of urgency to implementing major changes in parasite control strategies for horses in the U.S. The most critical change will be in the attitudes of horse owners and equine veterinarians because the notion of limiting treatment to certain seasons of the year seems radical, and the prospect of leaving certain animals untreated is tantamount to heresy. Craig R. Reinemyer, DVM, PhD.
The New Equine Parasitic Threat:
Merial Urges Horse Industry to Rethink Traditional Daily Deworming Practices
Horse owners should stop routinely deworming based on the calendar, tradition, peer recommendations or dewormer sale price, advises Merial’s new “Greetings, Human” educational campaign. They should instead seek out a knowledgeable equine veterinarian to help them develop long-term, effective deworming protocols based on monitoring and management.
Bad Bug Basics
A compilation of 12 articles on internal parasites of horses and control programs published in 2004 issues of The Horse: Your Guide To Equine Health Care. They have been reproduced in their entirety.
Controlling Strongyle Parasites of Horses: A Mandate for Change
Future approaches to equine parasite control must seek greater sustainability by exploiting inherent
host resistance and acquired immunity, implementing management procedures that reduce transmission,
and using anthelmintic treatments much less frequently and only in selected members of a
herd. Craig R. Reinemeyer, DVM, PhD
A Changing Paradigm on Deworming: Work smarter, not harder, at preventing anthelmintic resistance.
Dr. Cyprianna Swiderski, a veterinarian at Mississippi State University advocates a targeted deworming strategy. By evaluating horses’ individual worm loads and managing them accordingly, we avoid the over-treatment of less-infected horses that occurs when simply going by the calendar.
Ivermectin Resistance by Roundworms in Horses
Forget what you’ve been taught. It’s time to rethink rotation.
“We now are finding entire classes of dewormers are no longer working against the serious equine parasite threat of small strongyles. One of the significant contributors to that increasing failure is that the majority of horse owners are still rotating dewormers, because it’s what they’ve always done. But it doesn’t work. And indications are strong that these practices may contribute to resistance.” – Frank Hurtig, DVM, MBA, director, Merial Large Animal Veterinary Services
Evidence of Ivermectin Resistance by Parascaris equorum on a Texas Horse Farm
A comprehensive review on Fecal Egg Count Tests and parasite resistance in Foals.
Drug resistance in nematodes of veterinary importance: a status report
“Many parasitic nematodes of veterinary importance have genetic features that favor the development of anthelmintic resistance.” Dr. Ray Kaplan, DVM, PhD.
