How Often Can You Worm A Horse? (Question)

How often should a horse be wormed? Traditionally, veterinarians recommend worming your horse every two months.

How many times a year should you worm your horse?

  • Worming your horse can be different for every horse so firstly might be best to ask your vet for suggestions. However, what we have done over many years is 2-4 times a year usually every season or every other season. Starting with Spring, Summer, Fall then Winter. If your horse has been wormed before this should be sufficient.

Can you deworm a horse too much?

The active ingredient in a horse wormer kills the sensitive parasites in the population, but those parasites not affected go on to create new generations of resistant parasites. Frequent dosing or under-dosing can cause resistance to occur as can the effectiveness of the wormer.

How soon after worming a horse can you worm again?

Many of the data sheets for wormers, notably those that contain praziquantel, ivermectin or moxidectin, advise stabling for two – three days after worming.

Can you deworm a horse every month?

Traditionally horses have been dewormed every two months, but this has led to parasite resistance among horses. For this reason, we recommend performing Fecal Egg Counts (FEG) in the spring (ideally spring and fall) to determine the number of eggs a horse has in its manure.

Can you worm a horse twice in a month?

Get a worm count done before the first wormer is administered, and then a resistance test two weeks later so that you can see if the first dose sorted everything out, and if not, what to use next. Worming twice in two weeks won ‘t poison the horse.

Can I deworm my horse twice?

Here are the basics: You will need to deworm all horses twice yearly (after the first frost and again in the spring) with an ivermectin or moxidectin product to kill large strongyles and bots.

Can you worm a horse twice?

Deworming every couple of months, or rotating dewormers each time, or every other year, do not control internal parasites effectively. While the goal once was to rid an individual horse of all parasites, it’s impossible.

What are the signs that a horse has worms?

Symptoms of worm infections in horses

  • Weight loss.
  • Colic.
  • Diarrhea or constipation.
  • Rough hair coat.
  • Poor growth in foals.
  • Respiratory problems. (nasal discharge, cough)

What month do you worm horses?

All horses should be wormed in the late autumn with a combined round/tape wormer to remove bots, tapeworms and any adult roundworms. 4. For many horses once a year worming will be sufficient. Horses identified with higher worm burdens will need to be wormed more frequently.

Can you see worms in horse poop?

You can’t see them because the eggs are too small. But occasionally, you may see internal parasites in the adult or larva form that have worked their way through your horse’s digestive system and into the manure.

What’s the best horse wormer for this time of year?

Worming throughout the year There are two types of wormer that can be used for this, fenbendazole or moxidectin based wormers. Horses only need treating for tapeworm twice a year as the lifecycle takes six months to complete. This should be done in spring and autumn using a praziquantel or a pyrantel based wormer.

What time of year do you worm horses for tapeworm?

In the autumn/winter, we should treat our horses for: Tapeworm (if indicated necessary following a tapeworm saliva test) – Autumn. Encysted small redworm larvae – Late autumn/winter after the first frost.

How often should we deworm?

Worms being a very common health problem for children and adults alike, experts recommend that deworming should get done twice a year or every six months, starting from the age of two years old. Deworming is the process that involves the use of medication to get rid of intestinal parasites like worms.

What shots do horses need yearly?

Summary. To recap, your horse should at least receive EWT/WN and Rabies vaccinations once a year. In general, we recommend that your horse receive EWT/WN, PHF/Rabies, Strangles, and Flu/Rhino in the Spring, and PHF and Flu/Rhino in the Fall.

What horse wormer kills all worms?

Prominent in this class, ivermectin is effective against adults of all the common equine parasites except tapeworms. It is also effective against some larvae and is credited with greatly reducing colic associated with the migrating larvae of Strongylus spp., but it does not kill encysted small strongyle larvae.

How Often Should I Deworm My Horses?

Internal parasites are a normal component of the digestive systems of horses. While certain parasites might be useful in maintaining the health of the intestine, an overabundance of worms can create a broad range of potentially serious difficulties for your horse’s health and wellbeing. Setting up a good deworming regimen can assist to keep horses healthy while also reducing the likelihood of worm infection spreading.

How Horses Get Worms

Worms are extremely easily picked up by horses. Feces from the animals’ grazing pastures include both mature worms and larvae, which are discovered in the feces. Horses ingest the worms and pass them back into their digestive tracts along with the grass they eat, so keeping the cycle alive and well. Even when kept in a barn, horses can become infected with worms through their feces, which can contaminate feed and bedding. Horses are susceptible to a number of different forms of worms, including bloodworms, roundworms, tapeworms, bots, and pinworms.

  • Increased appetite
  • Weight loss that occurs suddenly
  • A dull or out of condition coat
  • Lethargy
  • Anemia
  • Diarrheal obstruction
  • Intestinal blockage.

In extreme circumstances, symptoms might increase to the point where they are potentially lethal. Veterinary diagnosis is recommended if you believe your horse has worms. This will help you discover the particular type of worms implicated as well as the degree of contamination, which will help you develop an appropriate treatment strategy. To check for worms, a veterinarian will do a fecal examination or a blood test on the animal.

How Often to Deworm Your Horse

A single, perfect horse deworming program that will work for every animal in every environment or for every type of worm does not exist, nor will there ever be. Traditionally, deworming regimens included treatments every two months, with the types of dewormers being rotated to reduce the likelihood of parasites developing resistance to the chemicals. Some horses, on the other hand, can be kept in excellent condition by merely deworming them in the spring and fall. In some cases, other animals may require continuing deworming treatments to be given to their feed, particularly to avoid the reappearance of worms after the initial problem has been resolved.

  • As a result, animals that are extremely young or very elderly may require more frequent deworming since their internal barrier to contamination is more vulnerable
  • Optimal health: Horses in good overall condition may require fewer deworming treatments because they are better equipped to withstand the harmful effects of worms. Smaller herds may require less deworming than larger herds, which may unwittingly contaminate one another. Herd size is also important to consider. Poor Pasture Conditions: A filthy, tiny pasture is more likely to house higher populations of worms than a larger field that has been appropriately treated to reduce parasites. Pasture Management: Climate: Worms grow in warm, damp conditions, therefore horses in cooler, drier climates are less likely to require deworming on a regular basis. When Your Horse Comes into Touch with Unknown Horses: If your horse comes into contact with strange horses at shows or boarding facilities, more regular deworming treatments may be necessary.

Keeping Your Horse Worm-Free

Additionally, it is critical to create a regular deworming regimen for your horse and to take easy precautions to reduce the risk of worm infestation. This will allow you to use deworming treatments less regularly, which will prevent the parasites from becoming resistant to the deworming treatments in the future. In order to keep your horse free of worms.

  • Maintain a regular harrowing schedule in the pasture to break up manure and enable it to dry out, killing any worms or larvae that may be present. Mow the pasture frequently to expose the dung and worms to more direct sunlight and drier circumstances that are less conducive to worm growth and reproduction. Ensure that manure is dumped in a location that is separate from where your horse will feed or graze in order to reduce the possibility of contamination. If feasible, rotate pastures every few weeks, allowing each pasture to remain unused for 6-8 weeks before returning horses to the herd. Reduce the number of horses in each field at the same time to reduce waste and cross-contamination between animals. Elevated feeders should be used to prevent your horse’s feed from coming into touch with the ground or any surrounding dung, which might lead to contamination.

It is simple to maintain control over these troublesome parasites and to keep your horses healthy throughout the year by developing a deworming regimen that matches your animals’ needs and taking precautions to keep them worm-free.

Equine Deworming Schedule

Not many people are aware that horses have a low number of parasites in their digestive tracts all of the time, and that this is quite normal. The objective of parasite control in horses is to maintain a healthy balance in the number of parasites present so that we do not experience clinical signs (weight loss, colic), while at the same time avoiding the development of drug resistance. Horses have traditionally been dewormed every two months, however this has resulted in parasite resistance among horses as a result of the practice.

In order to assess the quantity of eggs present in a horse’s dung, we propose doing Fecal Egg Counts (FEG) in the spring (preferably, both spring and fall).

Red Hills Veterinary Hospital Recommends the Following Paste Deworming Protocol:

Unless otherwise stated, all egg count levels listed below are recommendations based on the average range of counts achieved using the McMaster procedure.


Prior to deworming in the spring, a fecal egg count is conducted (ideally spring and fall)

  • Ivermectin (Equell®, Zimectrin®, Rotectin®, IverCare®), moxidectin (Quest®)
  • SPRING (March) – ivermectin (Equell®, Zimectrin®, Rotectin®, IverCare®)
  • PREVENTION: Ivermectin with praziquantel (Equimax®, Zimectrin Gold®) or moxidectin with praziquantel (Quest Plus®) in the FALL (October).


Prior to deworming in the spring, a fecal egg count is conducted (ideally spring and fall)

  • Prior to deworming in the spring, a fecal egg count should be undertaken (ideally spring and fall)


Pre-deworming fecal egg counts are conducted before to deworming in the spring and fall to detect signs of resistance.

  • Before deworming in the spring and fall, a fecal egg count is conducted to detect any symptoms of resistance.

In general, fecal egg counts should be used to assess therapy effectiveness. Unless otherwise specified, the treatment recommendations provided below are broad suggestions based on current medication resistance discoveries from throughout the world. It’s possible that other forms of dewormers will still be useful on your farm, and you can use them if you’ve determined that they’re successful through a fecal egg count reduction test.


  • Fenbendazole (Panacur) or oxibendazole (Anthelcide) for children under 2 months of age
  • Four to five months — Fecal egg count to track the incidence of ascarids vs strongyles in the stool. Fenbendazole (Panacur) or oxibendazole (Anthelcide) should be used to treat ascarid infestations. Strongyles should be treated with ivermectin after roughly 5 months. Use ivermectin and praziquantel to treat a tick infestation before the end of the calendar year. Assessing for the presence of ascarids in short yearling feces and treating those found with fenbendazole or oxibendazole should be done as soon as possible. Strongyles should be treated roughly three times with ivermectin throughout the yearling year, followed by one treatment with moxidectin + praziquantel towards the conclusion of the grazing season. Assays to determine treatment effectiveness include fecal egg count reduction tests.

How often should I worm my horse?

Generally speaking, worming should be done every 6-8 weeks. The development of a sustainable worming program for your own property, on the other hand, is quite vital. The health of your horses will be protected if you use effective worm control in conjunction with pasture management. Every animal, including horses, is infected with parasites. When properly maintained, your horse may coexist with worms in a rather peaceful environment. However, if worm loads are not well controlled, they can cause health issues such as colic, diarrhoea, and weight loss.

  1. A faecal egg count reduction test is the most accurate method of determining how frequently you should worm your cattle (FECRT).
  2. It is possible to use an FECRT to not only determine which worms are present in your horses, but also to determine which wormers will be most successful.
  3. To combat worm resistance, you should concentrate your efforts on the most serious parasite risks and make certain that you dose appropriately.
  4. Once you’ve identified which wormers are the most efficient for your property, you must apply the dosage in accordance with your weight.
  5. Worm Preventative Measures To conclude, there are other methods you may take, in addition to worming, to limit the worm population on your property.
  6. Aside from that, resting paddocks during hot, dry weather may keep your horses safe from worms, which flourish in these conditions.

The practice of quarantining new arrivals and performing an FECRT on them can also help to limit the spread of new worm species among your animals. Do you want to find out more about the health of your horse? To get our free fortnightly educational reports, please click here to subscribe.

13 guidelines to follow when deworming horses

Equine practitioners are particularly concerned with the control of internal parasites in their patients. The availability of readily available, easily administered, and effective deworming agents, combined with the recognition that a specific parasite, S. vulgaris, can cause a destructive colic problem (verminous arteritis), has resulted in a deworming frenzy, particularly among horse owners and breeders of horses. Parasite resistance, which has developed in part as a result of the frequent deworming, has become a big concern.

  • Because of prior deworming procedures, parasites that were formerly a major source of worry, such as S.
  • With adult horses, the focus is currently on small strongyles (cyathostomins), with tapeworms and other parasites thrown in for good measure.
  • At this time, it is recommended that horses should only be treated if they exhibit indications of a high parasite load.
  • Due to the fact that horses with a high degree of immunity do not shed many eggs, deworming all horses on the same timetable is not a good idea.
  • Internal parasites are not efficiently controlled by deworming every couple of months, switching dewormers each time, or deworming every other year, among other methods.
  • While it was originally the objective to completely eliminate all parasites from a single horse, this is now unachievable.
  • Some general guidelines are as follows: 1.Horses, particularly those older than three years old, should be handled as individuals rather than as part of a herd or as part of a routine.
See also:  How To Read Odds On Horse Racing? (Perfect answer)

If the horse lives alone or in a stable, the frequency of the visits may be reduced or eliminated altogether.

Acaricides such as pyrantel, fenbendazole, and oxibendazole are effective in the treatment of ascarids in young horses.

3.In herd circumstances, fecal egg counts should be utilized to choose moderate and high egg shedders for deworming, with moderate and high egg shedders being selected first.

Not all horses must be tested in order to be qualified.

4.Large shedders very definitely require more than one or two treatments each year, depending on their size.

The administration of any subsequent therapies would be done on an as-needed basis.

deworm at the proper time of year Deworming should be avoided during severe temperatures such as winter or summer, as well as during droughts.

Worm-control efforts should be considered as an annual cycle that begins when the likelihood of worm transmission to horses increases from minimal to likely.

If the time between dewormings is too short, the findings of the fecal egg count will only reflect how effectively the last dewormer performed, rather than measuring how well the horse’s immune system lowered levels of cyathostomin egg shedding during that period. As an illustration:

  • After receiving moxidectin, you must wait at least 16 weeks before collecting a fecal sample. After using ivermectin, you should wait at least 12 weeks before collecting a fecal sample. Wait at least nine weeks after using benzimidazoles (fenbendazole/oxibendazole or pyrantel) before collecting a fecal sample.

The deworming of stabled horses that do not have access to other equids on pasture may only be necessary on a rare occasion or not at all. 9.When compared to older horses, horses less than three years of age are more susceptible to parasite infestations than older horses. Among the particular recommendations for children are:

  • Foals should get at least four deworming treatments throughout their first year of life. The first should be performed when the baby is two or three months old, and the second should be performed three months later. Check for parasite eggs before weaning to determine whether or not the foal has parasites
  • The third and fourth treatments should be considered when the child is nine and twelve months old, respectively, and should target the worms that have been discovered. It is recommended that tapeworm therapy be included in one of the latter treatments. Perform fecal testing on a yearly basis to see how effectively the dewormers are working. It is not recommended to deworm an 8-day-old foal. Worms are not the source of the diarrhea. Recent weaned foals should be sent out on the cleanest pastures. In the case of yearlings and 2-year-olds, they should be treated as high shedders and should have three to four yearly treatments with medications that have been proven to work by a fecal examination.

Deworming should be performed on horses displaying indications of parasitism using either moxidectin, which has shown no evidence of parasite resistance, or a larvicidal regimen of fenbendazole (10 mg/kg for five consecutive days) if possible. Do not rely on dewormers alone to keep your pets healthy. Controlling the environment is essential. Manure should be removed from the pasture rather than being spread there. If there are cattle or goats available, allowing them to rotate onto the horse pastures for a few weeks will aid in the removal of eggs from the pastures.

  • Tradition dictates that botox therapy be administered 30 days after the first frost occurs.
  • Diatomaceous earth and other alternate dewormers are not recommended.
  • There is no single deworming program that works for everyone.
  • More information may be found on the website of the American Association of Equine Practitioners, which also has recommendations.
  • Did you find this article to be interesting?

Horse Worming Programmes

Horse worming programs that are tailored to the individual horse guarantee that specific worms are targeted with an effective treatment at the appropriate time. The following are the four major kinds of anthelmintics (horse wormers) available: 1.Benzimidazoles, such as fenbendazole and mebendazole, among others. 2.Tetrahydropyrimidines, such as pyrantel embonate (pyrantel embonate), 3.Macrocyclic lactones, such as ivermectins and avermectins, among others. Wormers based on the drug praziquantel (tapeworm treatment ONLY) Worming continuously throughout the year The importance of testing for and treating encysted small redworm in horses during the winter months cannot be overstated.

For this purpose, fenbendazole or moxidectin-based wormers can be employed, with the former being the preferred choice.

Spring and fall are the best times to perform this task, and either praziquantel or a pyrantel-based wormer should be used.

Your veterinarian or prescriber will be able to provide you with more information about this.

It is crucial to remember, however, that faecal egg counts are incapable of detecting encysted tiny redworm or tapeworm eggs, and that it is thus necessary to treat for these parasites at specific times of the year, as previously explained.

Worming a New Horse

A worming treatment or combination of products that will kill all forms and stages of roundworm (including encysted and inhibited tiny redworm) and tapeworm is recommended for each new horse that is brought into the household. If you worm your horse, you should keep him stable for 48 hours thereafter so that the wormer can take action and prevent viable eggs from being laid on the pasture.

Choose The Correct Worming Horse Strategy

A variety of factors influence how worming treatments for horses are administered. Learn how to select the most appropriate worming regimen for your horse. Intervals between worming The frequency with which horses are wormed is determined by the management structure in place at the farm. It is preferable to utilize the smallest number of treatments feasible in a year, as over-worming might result in resistance to treatment. Some horse owners will need to worm their horses more frequently than others, depending on a variety of variables.

  1. This is due to the fact that these horses will be the most susceptible to infection.
  2. In areas with low stocking levels, it may be possible to worm horses on a less frequent basis.
  3. Using faecal egg counts to identify adult horses for deworming is the most environmentally friendly technique to manage worming in your herd of adult horses.
  4. Gold Standard in Strategic Planning Worming horses entails worming them according to the following criteria:
  • The lifetime of a parasite
  • The risk of sickness
  • And the likely resistance status of worms

It is critical to do so in order to slow down resistance. A excellent program is as follows:

  • It focuses on the horses who are most in need of therapy while simultaneously reducing the use of chemicals in the remaining horses. Monitoring of the feces egg count is employed. Prevents the overuse of compounds from the same class of active ingredients. Includes products containing pyrantel to provide appropriate control of tiny strongyles or roundworms that are resistant to other chemicals. It is recommended that moxidectin be used no more than once a year when treating encysted tiny strongyles is explicitly suggested
  • Horses are treated in a strategic manner based on worm lifecycles and the time of year
  • Use of single active wormers year after year is discouraged. It entails quarantining and treating new horses with a combination wormer when they arrive.

For the Gold Standard Young horses program

  • Paddock management can help to reduce worm infestations. Worm the mare two weeks before foaling (or on the day of foaling if the mare is not wormed)
  • In all horses less than two years of age, avoid the use of plain mectin or mectin/tapewormer products. Ensure that you only use combination wormers that contain pyrantel, such asSTRATEGY-T ® andEQUIMAX ®ELEVATION. Make use ofSTRATEGY-Tas as the initial wormer for the foal at 8–12 weeks of age, then repeat every 8–12 weeks until the foal is 9–12 months old before usingEQUIMAX ELEVATION. Incorporate an FEC monitoring protocol within the breeding program for yearlings.

For the Gold Standard Adult horses program

  • Paddock management can help to reduce worm infestations. Worm all adult horses twice a year: once in the spring with STRATEGY-T and once in the autumn with EQUIMAX ® or EQUIMAX ELEVATION. To determine whether horses or paddocks require worming at other times of the year, use FEC monitoring to identify them. Make use ofSTRATEGY-T during the warmest months* and EQUIMAX during the cooler months. FEC testing may be used to detect any excessive shedders in your herd of horses. Each of these horses is wormed four to six times a year.

If your horse gets summer sores that appear to be suspicious, useEQUIMAXorRAZOR ®and then return toSTRATEGY-T if more summer worming is necessary. Vote for the following content: 54321 Looking for more information about horse health?

How often do you de-worm your horses?

THere have been several new research and improvements in wormers, and as a result, the previous methods have been discovered to either not perform as effectively or to be a waste of your money. I’ve saved a number of articles on deworming, and I’ll provide you with one and two links to further papers on the subject. Please take the time to read it since I believe it will be of assistance. =D Parasites Keeping your horses free of parasites is critical to their health and wellbeing. To identify whether or not parasites are present, do the appropriate fecal tests.

Bots and tapeworms should be treated at least once a year. Alternate between active components on a regular basis. Dose according to weight and consult with your veterinarian if you have any doubts. Symptoms of Parasite Infection ​

  • Expansion of the stomach or the appearance of a pregnant abdomen
  • Dull coat
  • Delayed or atypical shed
  • Low energy level
  • Depressed demeanor Growth and development that is abnormal
  • Coughing that is not explained and indicators of a reduced immune system Problems with weight control
  • Constipation and/or diarrhea

Paste Dewormers are classified according to their chemical composition. Active IngredientsProducts that work against (different types of worms) (Brands) The insecticide Ivermectin is used to treat large and small strongyles, pinworms, hairworms, and threadworms as well as stomach worms, lungworms, ascarids (roundworms), and bots. Jeffers Ivermectin Horse Well-Being Strongyles, pinworms, hairworms, stomach worms, ascarids, bots, and Encysted little strongyles are all treated with IvermectinBimectinTMZimecterin®Equimectrin®Rotectin 1.87 percent Iver Ease TMIverCare® MoxidectinLarge and small strongyles, pinworms, hairworms, stomach worms, ascarid Ivermectin and Praziquantel (Quest®Ivermectin & Praziquantel) for the treatment of large and small strongyles as well as pinworms, hairworms and threadworms as well as stomach worms, lungworms, Ascarids, Bots, and Tapeworms The use of EquiMax®Zimecterin Gold®Moxidectin and Praziquantel against large and small strongyles, pinworms, hairworms, stomach worms, Ascarids, Bots, Encysted tiny strongyles, and Tapeworms is recommended by the American Veterinary Medical Association.

Quest® PlusPryantel pamoate is a prescription medication.

Pyrantel Tartrates, Anthelcide®EQ, Large and Small Strongyles, Ascarids and Pinworms, Daily Wormers, Anthelcide®EQ Strongid® C,ContinuexTM, and Equi Aid CW® are among the dewormers being used to combat dewormer resistance, according to

Equine Recommended Deworming Schedule

Obtainable as a printable resource Unless otherwise stated, the egg count levels provided here are only recommendations based on the average range of counts achieved by the McMaster procedure.

Adult Horse Schedule

  • Performing a fecal egg count before to deworming in the spring (preferably, both spring and fall)
  • The following medications are used in the spring: ivermectin (Equell®, Zimectrin®, Rotectin®, IverCare®), and moxidectin (Quest®)
  • The following medications are used in the fall: ivermectin with praziquantel (Equimax®, Zimectrin Gold®), and the following medications are used in the winter: moxidectin (Quest Plus®
See also:  How Long Should A Charley Horse Last? (Perfect answer)

Moderate Shedders (200-500 EPG)

  • Performing a fecal egg count before to deworming in the spring (preferably, both spring and fall)
  • The use of ivermectin (Equell®, Zimectrin®, Rotectin®, IverCare, and other brands), as well as the use of moxidectin (Quest®), is recommended in the spring (March). Late summer (July) – ivermectin
  • Fall (October) – ivermectin w/ praziquantel (Equimax®, Zimectrin Gold®) or moxidectin with praziquantel (Quest Plus®)
  • Winter (November) – ivermectin w/ praziquantel (Equimax®, Zimectrin Gold®)
  • Spring (April

High Shedders (500 EPG)

  • In the spring and fall, a fecal egg count is conducted prior to deworming to check for signs of resistance. The following medications are used in the spring: ivermectin (Equell®, Zimectrin®, Rotectin®, IverCare®), moxidectin (Quest®)
  • The following medications are used in the summer: ivermectin
  • The following medications are used in the late fall: ivermectin with praziquantel (Equimax®, Zimectrin Gold®)
  • The following medications are used

In general, fecal egg counts should be used to assess therapy effectiveness. Unless otherwise specified, the treatment recommendations provided below are broad suggestions based on current medication resistance discoveries from throughout the world. It’s possible that other forms of dewormers will still be useful on your farm, and you can use them if you’ve determined that they’re successful through a fecal egg count reduction test.

Foal Schedule

  • Fenbendazole (Panacur) or oxibendazole (Anthelcide) for children under two months of age
  • Four to five months — Fecal egg count to track the incidence of ascarids vs strongyles in the stool. Fenbendazole (Panacur) or oxibendazole (Anthelcide) should be used to treat ascarid infestations. Strongyles should be treated with ivermectin after roughly five months. Use ivermectin and praziquantel to treat a tick infestation before the end of the calendar year. Assessing for the presence of ascarids in short yearling feces and treating those found with fenbendazole or oxibendazole should be done as soon as possible. Strongyles should be treated roughly three times with ivermectin throughout the yearling year, followed by one treatment with moxidectin with praziquantel before the conclusion of the grazing season, according to the manufacturer. Assays to determine treatment effectiveness include fecal egg count reduction tests.

Deworming Protocol Guidelines

The following are some of the most essential points and recommendations:

  • Maintain pasture rotation
  • Cross-graze grasslands with ruminants wherever possible. Remove manure on a regular basis. During hot and dry weather, harrow or drag pastures and keep horses out for two months. Overstocking pastures should be avoided.
  • Fecal analysis should be performed at least once a year to assess the effectiveness of parasite management.
  • Fecal egg count is an estimation of the amount of parasite eggs released by the horse in his feces. Before doing a fecal analysis, consult with your veterinarian to ensure that enough time has gone since your horse’s last deworming for eggs to have re-appeared in the stool. Each dewormer has a different Egg Reappearance Period, so check with your doctor to find out what yours is. Fecal egg count reduction test—depending on the product used, the number of worm eggs in the feces should reduce by 90 percent when evaluated 14 days after deworming.
  1. Once a year, use a dewormer containing praziquantel (such as Zimectrin Gold® or Quest Plus®) to treat for tapeworms. Small strongyles (cyathostomes) are only sensitive to a few different types of dewormers while they are in their encysted larval stage. In light of medication resistance studies throughout the world, moxidectin (Quest) would be the medicine of choice in the vast majority of instances. Enthusiastically treating the encysted larvae is suggested in the fall, at or at the conclusion of the grazing season, just before the animals enter the winter. Don’t keep mares and foals in the same pasture or paddock year after year to save money. There is an increase in the number of ascarid eggs produced, which might survive between years and infect fresh foals born during the spring breeding season

To be clear, the two parasites that cause the most worry in adult horses are tiny strongyles (encysted strongyles, cyathostomes) and tapeworms (see below). The ascarid is the parasite that causes the most worry in young horses. For the best results, consult with your veterinarian and do fecal egg counts to determine: 1) dewormer efficacy in your equine business, 2) the existence of ascarids in young horses, and 3) the presence of weakyle egg shedders at low, medium, and high levels in adult horses.

A surveillance-based deworming program allows for the use of less dewormer, which can save money while also ensuring the effectiveness of the program. TheEquine Servicessection was responsible for its creation. Dr. Martin Nielsen was in charge of editing. ​

Managing your horse after worming

We get a lot of questions from customers who are concerned about what to do with their horses after they have been wormed here at Westgate Labs. Put them in a safe place, but for how long? Do you want to put them back in the same field? Or do you relocate them immediately to clean, fresh grazing? The chosen course of action may surprise you because there are a few factors to consider. Managing horses with care after worming serves two purposes: first, to optimize parasite management for your horse and to help slow down wormer resistance; second, to reduce the impact of harsh chemicals in the environment on your horse’s health.

  1. They will also have a deleterious impact on dung beetles and other microbes, as will all worming drugs.
  2. Packaging should be disposed of with care, ideally in a trash can with a cover.
  3. Within the next 24-48 hours Many of the data sheets for wormers, particularly those containing praziquantel, ivermectin, or moxidectin, recommend keeping animals in a stable for two to three days following worming.
  4. “This is done to limit the impact of moxidectin on dung fauna and because there is insufficient data regarding the environmental risk of praziquantel,” the data sheet states.
  5. If stabling is not an option, try to worm when the weather is dry to prevent chemicals from being washed into the soil, and poo pick as completely as you can after each horse.
  6. Any worms that are shed after worming are unable to live outside of the body and thus pose no concern of reinfection to horses grazing in the pasture.
  7. It is currently believed that relocating the horse to a clean pasture immediately following worming is an effective method of encouraging the establishment of a resistant worm population in the horse.

To prevent this from happening, horses should be returned to their old pasture after being wormed, therefore diluting the population of resistant worms with those that are still sensitive to the treatment.

Tapeworms are being targeted.

In part, this is because the tapeworm segments that are shed after treatment include eggs, and these eggs rupture in the dung, unleashing new potential for infection, which you do not want on the pasture if at all possible.

Management that is effective The goal should be to administer as few wormers as feasible to our horses.

Instead of depending on frequent chemical intervention, try to interrupt the worms’ lifecycle using mechanical techniques such as poo picking, cross grazing, or harrowing (in dry, sunny weather).

Learn more about dung beetles and how to protect yourself against them.

Do you have any queries regarding worming your horse? Contact us now. We understand that there are instances when you want assistance with a subject. Whenever you need it, you may get FREE friendly SQP help from our team, which is available via phone, email, or Facebook message.

When to Deworm your Horse – QUEST® and QUEST® PLUS

WHEN SHOULD YOUR HORSE BE DEWORMED? Every horse is a one-of-a-kind individual. Collaborate with your veterinarian to establish an Individualized Deworming TMprogram for your horse, which should begin with an examination of the fecal egg count (FEC). Establish a baseline fecal egg count for comparison purposes. An FEC test will establish the degree of parasite shedding that is currently present in your horse. The results of the FEC test reflect the number of parasite eggs in one gram. It is possible that less than 200 eggs per gram indicates a minimal danger.

Understand the risk factors associated with parasites in your horse.

These should be discussed with the veterinarian on your team.

  • Results of the FEC test
  • Horse’s age
  • Local climate
  • Manure removal
  • Pasture rotation
  • Pasture population
  • And more. Lush, overgrown, dry lot or a mix of these types of grassland
  • Feeding can be done individually or in groups, on or off the ground. Show/performance, recreation, and companionship are some of the ways horses are used. horses are moved throughout the property on a daily basis

Deworming Your Horse Should Be Individualized Following an evaluation of FEC shedding levels and your horse’s individual risk profile, you and your veterinarian will be able to build an Individualized Deworming regimen for your horse to meet his or her needs. Deworming treatments, which target important equine parasites of concern, are recommended by the American Association of Equine Practitioners (AAEP) for all horses in the spring and autumn, according to their guidelines. 1 The American Association of Equine Practitioners (AAEP) recommends high-risk deworming treatment strategies for young horses (ages 3 and younger).

  • QUEST ® is a single-dose treatment that efficiently cures and controls encysted tiny strongyles.
  • 2,*Autumn DEWORMING —Tapeworm therapy is advised once a year, in the late fall or early winter, when tapeworm transmission has ceased as a result of the winter’s chill.
  • It is possible that these two treatments are all that is required depending on your horse’s parasite risk factors.
  • Consult with your veterinarian to have a fecal egg count (FEC) test performed on your horse prior to purchasing a deworming medication.
  • It is not recommended for usage in other animal species due to the possibility of serious adverse responses, including deaths in dogs.

To Worm or Not to Worm?

Since ancient times, most horse owners have wormed their horses every few months (a practice known as ‘interval dosing’), without first determining the extent of the horse’s worm burden.

However, the evidence suggesting we should modify our stance is growing stronger all the time. For example:

  1. Due to abuse of wormers, worms are growing increasingly resistant to all of the several types of worming agents available. Because there are no new wormers on the horizon, we must utilize existing wormers as efficiently as possible in order to prevent the development of resistance. Horses do not need to have a worm load of zero to prevent the development of resistance. A modest worm burden helps to increase immunity, which is likely to be advantageous. For most physicians, an egg count (FWEC) of 100-200 eggs per gram (epg) is regarded adequate for faecal worm egg count (FWEC).

The egg count in faecal samples was below this level in numerous recent studies, indicating that worming was not essential in these cases.

Targeted Dosing

A more effective method of worming is to perform regular FWECs and only worm horses that have a significant worm burden (referred to as “targeted dosing”). Even after accounting for the additional costs of egg counts, this is a more cost-effective option for most horses because it reduces the need for wormers. It also has the additional benefit of delaying the development of resistance, which is beneficial to the entire horse population. Our findings are consistent with recent surveys that found that only 20% of horses carry a high worm burden, i.e., that in a group of horses all kept under the same conditions, only one horse may have a high worm burden.

They have a lower level of immunity to parasites and will most likely require worming more frequently than other horses in the same environment.

How do you implement a targeted dosing programme for your horse?

Regular FWECs are preferable, and only horses with high worm burdens should be wormed (this is known as “targeted dosing”). The use of egg counts is more expensive than using wormers, even after accounting for the additional expenses of egg counts. The development of resistance is also delayed, which is beneficial to the overall horse population. We found that our findings are consistent with recent surveys which found that only 20% of horses are carriers of worms, which means that in a group of horses all housed in the identical conditions, only one horse may have a significant worm load.

It is likely that they will require worming more regularly than other in-contact horses due to their poorer parasite protection.

What are the limitations of targeted dosing?

FWECs do not provide a quantitative assessment of a horse’s tapeworm load, despite the fact that segments occur sporadically in feces. Because tapeworm load can only be determined by a blood test, it is more feasible to use a tape wormer on an as-needed basis, perhaps once or twice a year. Tapeworms are picked up by horses during the grazing season, which means that the fall is the optimum time to cure them. Colic can be caused by an untreated tapeworm load. Egg counts do not identify immature, encysted worm larvae, which do not produce eggs and are thus not detected.

See also:  What Is A Mini Horse Called? (Solved)

If you do not worm your horse because it has a low egg count, you will not be able to remove bot larvae that have accumulated in the horse’s stomach throughout the winter months.

So what year round worming policy do we recommend?

  1. A combination round/tape wormer, such as Equest Pramox or Eqvalan Duo, should be administered to all new horses and horses with an unknown worming history. Following that, horses should receive regular FWECs. When there is a track record of low loads, the interval can be increased in yards.N.B. All horses in a yard should be checked since they may have drastically varied worm loads as a result of their varying degrees of immunity to worms
  2. Otherwise, the yard should be closed. In the late fall, all horses should be wormed with a mixed round/tape wormer to eliminate bots, tapeworms, and any adult roundworms that have developed. 4. Worming will be adequate for the majority of horses once a year. Horses with larger worm loads may need to be wormed more regularly, according to the veterinarian.

If you have any queries concerning worming, please do not hesitate to contact us! « Return to the previous page

Latest News

« Continue reading this post »

Office Hours

» Continue reading this.

Unbiased horse worming advice from Mount vets in Somerset

There appear to be a plethora of various horse wormers available on the market, making it difficult to pick which horse wormer to use. It is common for friends on the livery yard to provide well-intentioned, but often erroneous, advice, which can further complicate matters. In order to assist you in selecting the most appropriate wormer for your horse at each stage of the year, we have created the following guidance – at the end of this helpful guide, you will discover a detailed breakdown of our horse worming schedule.

  • Maintain the health of your horse by treating it for the appropriate parasites at the appropriate time of year. Provide you with advice on how to maintain your horse’s pasture as clean as possible in order to lessen the parasitic issue he faces
  • Provide you with advice on the proper rotation of wormers to use in order to limit the likelihood of resistant parasite strains forming
  • Provide you with some fundamental guidelines to follow when you build your own worming regimen

Parasitic worms in horses

There are many different forms of worms (and fly larvae) that might pose a hazard to the health of your horse. By implementing a thorough horse worming program, you can protect your horse against the following parasites and diseases:

Small Redworms (Small strongyles/Cyasthostomes)

These worms are currently the most often encountered in horses. Typically, they are located in the large intestine, where they might move to the gut wall and form an encyst. The emergence of large numbers of previously encysted little redworms creates a condition known as larval cyasthostomosis in horses, which has the potential to be fatal. Anorexia and sadness are common symptoms, as is fast onset diarrhoea, weight loss, colic, oedema (“filling”) of the rear legs and sheath, and colic.

Large Redworms (Large strongyles)

Adult worms are located in the big intestine of horses, while larval stages travel via the blood vessels of the animal. Colic (which can be deadly in horses) can develop when the blood flow to the horse’s gut is weakened. It is now far less usual to see giant redworms wreaking havoc than it used to be, thanks to the availability of highly efficient wormers.

Tapeworms (Anoplocephala species)

Tapeworms are parasites that attach themselves to the junction of the small and large intestines. According to research, tapeworms are a possible cause of potentially severe colic, which can result in deadly perforation of the gut. Horses under two years of age and horses over fifteen years of age had the highest infection rate, according to the CDC. Tapeworm eggs are excreted in a horse’s feces and are devoured by fodder mites, which are parasitic on horses. In the event that your horse consumes an infected forage mite, mature tapeworms may be identified in your horse’s gut within one or two months of the incident.

Bots (Gasterophilus)

These are really flies, not worms, and they are a common source of anxiety for pet owners throughout the summer months. The eggs of the bot fly are placed on the legs of horses. Depending on how they hatch, the larvae either creep into the horse’s mouth or are conveyed by licking. In the end, they make their way to the stomach, where they will reside for the next 10 to 12 months. Bots have the potential to cause harm to the stomach lining.

Bots may be controlled by physically removing bot fly eggs from your horse’s coat. This is an effective method of controlling bots. During the winter, the administration of an ivermectin or moxidectin wormer such as Eqvalan, Equimax, or Equset is also beneficial in preventing worm infestations.

Keeping Pasture Clean

For pastures with large grazing and small horse populations under the supervision of a single owner, pasture management can be extremely efficient in lowering parasite levels. Unfortunately, most of our customers have limited access to pasture and/or must share livery yards with a constantly fluctuating population of horses and owners, which may be frustrating. Although the measures listed below will aid in the management of parasite loads on pasture, it is important to note that they are not a substitute for a comprehensive worming program on the farm.

  • Make an effort to collect horse droppings from pasture on a regular basis — at least twice weekly if feasible
  • Reduce the size of paddocks and divide them into smaller sections to allow for rotational grazing and make it easier to collect droppings. To avoid overgrazing paddocks, keep the number of horses per acre to no more than 1–2 horses. Stocking grassland with sheep or cattle will help to limit the number of horse worm larvae on the property. Despite this, horses will still be exposed to certain cow or sheep larvae, which are of little risk to horses and can be treated with relative ease. In our environment, harrowing to enable droppings to break apart and dry out (thereby killing the larvae) is not always successful.

Years 1 and 2

  • Give a single treatment of Equest in the summer and winter, and a single application of Equest Pramox in the spring and fall. In this manner, encysted small redworms, giant redworms, bots, and tapeworms will be controlled every 13 weeks by alternating dosage.

Year 3

  • When it comes to the “conventional” worming routine, it is important to understand which parasites to treat at particular periods of the year.

April – September (summer grazing)

The period between wormings is determined by the type of wormer that is employed. We recommend that you do the following:

  • Strongid-P should be repeated every 4-6 weeks, Panacur should be done every 6-8 weeks, and Eqvalan or Equimax should be repeated every 8-10 weeks.


  • To control tapeworms, either a DOUBLE DOSE of Strongid-P or a SINGLE DOSE of Equitape should be used. Tapeworms are a severe cause of colic in horses, particularly in young horses.


  • In order to control encysted tiny redworms, a five-day course of Panacur Guard must be administered. During the winter, these larvae can induce diarrhoea, colic, and weight loss in your horse. They also contribute to the pollution of pastures the following spring, as previously stated.


  • Using a single dosage of Eqvalan or Equimax, you may eliminate any Bots that your horse may have acquired over the summer.


  • The use of a five-day course of Panacur Guard will minimize the emergence of large numbers of encysted tiny redworm larvae and will reduce contamination by a substantial amount. These considerations are especially critical in multi-horse environments.


  • Equitape or a DOUBLE DOSE of Strongid-P will eliminate any tapeworms that your horse may have picked up during the winter.

To talk with one of our Equine veterinarians about a worming program in further detail, please call 011823 662286 or email [email protected].

General horse worming rules

  • Make a decision on whether or not to do faecal worm egg counts on your horse and then treat your horse according to the results. Dose precisely because your horse may weigh more than the maximum weight that may be treated by a single tube. All horses should be treated with the same substance at the same time. Maintain a consistent class of wormer for the whole of the summer grazing season under the “conventional” regimen
  • Maintain the “conventional” worming regimen every three years to limit the likelihood of resistant worms emerging. In general, the majority of wormers are safe to use in stallions, pregnant mares, and foals as young as four months old (younger in some situations – check first)
  • Pregnant mares should be wormed both before and after foaling
  • The first dosage of Equest Pramox should be administered, followed by a five-day course of Panacur Guard, followed by an Equitape or a double dose of Strongid-P on the sixth day for horses with uncertain worming histories. Try to keep new horses separated from the rest of the herd for at least 24 hours after their worming treatment has been completed. Note down the date, product, and dose of any worming treatments administered to your horse. Try to come to an agreement with other members of your stable or yard on a mutually agreed-upon horse worming regimen.

If you have any concerns about this subject, the Equine Vets at Mount Vets are here to help. If you want assistance or advice on any equine veterinary matters, please contact us immediately — we are here to assist you.

Please call: 01823 662286

Each pack provides one year’s worth of protection for a horse weighing 1200 pounds.

Rotation Deworming Schedule

  • 1January/FebruaryPyrantel
  • s2March/AprilBenzimidazole
  • s3May/JuneIvermectin
  • s4July/AugPyrantel
  • s5Sept/OctoberBenzimidazole
  • s6November/DecemberIvermectin


Durvet Pyrantel, Strongid Paste, and Exodus Paste are all excellent choices.


Panacur Paste, Panacur PowerPac, Safe-Guard Paste, Safe-Guard Equi-Bits, Anthelcide EQ are some of the products available.


The following products are available: Equimax Paste (with praziquantal),Zimecterin Paste,Zimecterin Gold (with praziquantel),Quest Equine Gel (Moxidectin),Quest Plus Gel (with praziquantel),Quest Equine Gel (with praziquantel),Quest Equine Gel (with praziquantel),Quest Equine Gel (with praziquantel) (Moxidectin with praziquantel)

Horse Worm Facts

Pinworm eggs are taken up by horses via contaminated feed, water, and bedding, and they may also be found on tail wraps, grooming tools, fence posts, and stalls. Pinworm eggs are not contagious to humans. The female pinworm lays her eggs around the anus, secreting a chemical that can cause acute itching in the process. This can cause friction of the tail and potentially harm to the tail and rump of the dog. The itching may be relieved by washing the perianal region with soap and hot water, but any items that were used should be discarded or cleaned in hot water with soap.

Ascarids (large Roundworms)

It is in the small intestine that the adult stages of the giant roundworm are located, where the female excretes enormous quantities of eggs into the dung. These eggs become infected after approximately two weeks, and the horse picks them up while grazing on the pasture. The larvae travel into the blood arteries and are delivered to the liver and lungs by the bloodstream itself. In the process of being coughed up and swallowed, the juvenile worms mature in the small intestine, completing the life cycle.


Bots are the juvenile maggot stages in the life cycle of the bot fly, which has a general look similar to that of a honeybee. Bots are the larval stage in the life cycle of the bot fly. The females lay their eggs by attaching them to the hairs on the front legs, the neck, and the underline of the female’s underline. Larvae attach themselves on the horse’s lips and tongue and burrow their way into the horse’s tissues when it licks its own skin.

It takes around three weeks for them to attach themselves to the lining of the stomach, where they can linger for several months, inflicting significant harm to the digestive system.

Large Strongyles (Blood Worms)

In the large intestine, adult strongyles are found securely attached to the intestinal walls, where the females deposit vast quantities of eggs that end up in the excrement. When the eggs hatch, the larvae climb the blades of grass and are devoured whole by the adult. The larvae next travel to the major arteries that supply the intestines with oxygen and nutrients. As a result of the damage to the artery walls, blood clots develop and break away, resulting in colic. Small Strongyles (Cyathostomins) are a kind of parasite that may be found almost anywhere, infecting practically all grazing horses.


It is believed that 40 percent of the horses in the United States are afflicted by this disease, which is difficult to detect. Infection with tapeworms occurs while grazing, when the horse ingests the intermediate host, which is a mite that can be found on plants. Once infected, tapeworms are known to cause digestive difficulties, colic, and malnutrition in animals. Tapeworms are frequently undetected when using standard fecal flotation techniques.

Leave a Reply

Your email address will not be published.