Deworming & Internal Parasites


Ivermectin Could be Ineffective Against Some Pinworms

July 07, 2017

Ivermectin was ineffective in treating pinworms in a herd of Welsh ponies. Fenbendazole, however, eliminated the worms.... Read More


Tapeworms in Horses

July 01, 2017

Some horses are more susceptible to this common parasite than others. Here's what you need to know.... Read More


Clinical Signs of Internal Parasites in Horses

June 21, 2017

Dr. Martin Nielsen gives a basic overview of health issues that could indicate your horse has "worms."... Read More


Deworming a Horse With an Unknown Health History

June 20, 2017

Get parasite control advice for horses that haven't been dewormed recently from Dr. Kenton Morgan.... Read More


Manure Management and Internal Parasite Control for Horses

June 19, 2017

Dr. Martin Nielsen explains why composting and good manure management are imperative to internal parasite control.... Read More


When Should Foals Be Dewormed?

June 16, 2017

Foals are at the greatest risk for internal parasites. Dr. Kenton Morgan offers advice for protecting them.... Read More


What's New in Equine Parasite Control?

June 08, 2017

Learn the most up-to-date information about when and how to deworm your horses. ... Read More


10 Parasite and Deworming Resources on

June 08, 2017

Transition to targeted deworming without a hitch with these free resources.... Read More


Don't Divvy Up The Dewormer

June 07, 2017

Find out how to deworm your horses without promoting drug resistance. ... Read More

It is important that you know the basic characteristics of common equine parasites, as well as the main mechanisms of action and affects of the common deworming compounds.


Don't Let Deworming Myths Keep You Up

June 02, 2017

By taking a research-based parasite control approach owners and vets effectively protect horses from internal parasites.... Read More

Apple, an Appaloosa pony, received his vaccinations and health exam by a Ross University veterinary student while his owner provides general information.


Applying Research Knowledge During Equine Wellness Clinics

May 25, 2017

A PhD student describes her recent experience applying her research skills during an equine community outreach event.... Read More


Common Dewormers: Still Effective Against Small Strongyles?

May 20, 2017

Study results revealed that three commercially available dewormers showed poor efficacy on the majority of farms tested.... Read More

It is important that you know the basic characteristics of common equine parasites, as well as the main mechanisms of action and affects of the common deworming compounds.


Deworming Drug Resistance in Ethiopian Working Horses

April 28, 2017

The study evaluated the effectiveness of ivermectin and fenbendazole, as well as owners' deworming practices.... Read More

The tapeworm, <em>Anoplocephala perfoliata</em>, gathers around the junction between the small and the large intestine in the cecum. This parasite is very common and most horses tolerate it well. Large tapeworm burdens can cause colic in the horse. Pyrantel (double dose) and praziquantel are effective drugs for treating tapeworms.


Researchers Develop Saliva-Based Equine Tapeworm Test

April 26, 2017

This could encourage the use of targeted deworming programs to help reduce parasite resistance, scientists said.... Read More

Transabdominal ultrasonography is useful for reliably identifying worm burdens of more than 10 ascarids.


The Future of Parasite Control?

April 22, 2017

Anthelmintic resistance occurs worldwide. With only three drug classes to choose from, are we running out of options?... Read More


Parasite Control Recommendations for Boarded Horses

April 21, 2017

Vets recommend a whole-facility-focused approach to parasite control, but what do you do when you don't manage the farm?... Read More


Parasite Control: An Update

April 19, 2017

In the past, researchers developed new classes of antiparasitic compounds every 10 years or so. But what works today? ... Read More

Good manure management, including picking manure out of pastures and dry lots, is one of the best ways to limit your horse's exposure to internal parasites.


Equine Internal Parasites

April 18, 2017

Take a look at common internal parasites and learn about drug resistance and how to control certain worms.... Read More

Fecal egg counts help owners identify high-shedding horses and whether the dewormer used worked.


What is Your Horse's Fecal Egg Count Telling You?

April 17, 2017

Find out how a fecal egg count test can help you better target the parasites in your horse herd. ... Read More


Small Strongyle Arrested Development Not Found in Foals

April 14, 2017

A recent study suggests small strongyles might not behave the same way in foals as they do in adult horses.... Read More


Pasture Management for Parasite Control

April 12, 2017

With parasites' growing anthelmintic resistance, remember to include pasture management in control efforts.... Read More


Manure Storage Methods for Fecal Egg Counts Tested

April 10, 2017

Researchers found that samples can be refrigerated for up to a week without adverse effects on egg counts.... Read More

It is important that you know the basic characteristics of common equine parasites, as well as the main mechanisms of action and affects of the common deworming compounds.


Worms vs. Drugs: The Fundamentals

April 07, 2017

Learn about common equine parasites, as well as the mechanisms and effects of common deworming compounds.... Read More


Researchers Evaluate Parasite Patterns in Feral Horses

April 05, 2017

Overall horses coped well with parasites. But the heavier the parasite load, the lower the horse's body condition score.... Read More

Fecal egg counts (completed under a microscope) performed before and after deworming help owners determine whether a drug is effective and which horses are low, moderate, or high shedders.


Novel Equine Deworming Principles, Procedures in the Works

April 04, 2017

Researchers are working to help us better evaluate and manage parasites in the face of anthelmintic resistance.... Read More