Your Deworming Schedule - The Horse Forum
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post #1 of 12 Old 12-02-2013, 12:19 PM Thread Starter
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Your Deworming Schedule

Ok, Im just curious how many variations of deworming schedules there are out there and why they use the rotations/methods they use. Which wormers and when? Generic or brand name?
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post #2 of 12 Old 12-02-2013, 01:03 PM
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I am not an expert but what I do know is that there is a lot of variety out there ragarding worming schedules and it primarily has to do with what region you're in and therefore which worms are present and what time of year that they are active. Whether you have horses at your facility that travel versus staying put can also impact what you do as a schedule as horses who leave are more likely to pick up something than those who stay put. Different wormers (ivermectin vs strongid, etc) target different types of worms and even different lifestages of different worms, thus the rotation of different types of wormer.

In the past few years due to wormer-resistance developing in a number of worm species, there has actually been a big push to get away from preventative worming (i.e. worm blindly without knowing if your horse has worms or not) and move more towards testing for worms and only treating if needed. To me, this method makes much more sense although some barns may require you to be on their worming schedule in which case they may not allow you to not worm. If you want to move to the "testing" methodology, check with your vet and see what they recommend as far as how frequently to test. The test is very easy, the vet just needs a fecal sample and they will then take it back to their clinic and examine it for worms under the microscope.
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post #3 of 12 Old 12-02-2013, 01:22 PM
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I don't do rotational deworming but to by fecal tests. I deworm with quest plus in the spring and equimax in the fall and do fecal exams at least twice a year.
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post #4 of 12 Old 12-02-2013, 02:05 PM
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It also depends on your situation. I, for example, can get away with worming with Equimax once a year. I have a closed herd, pick my paddocks several times a day, would do the same with pasture, had fecals done in the beginning and am now clear. The Equimax covers bots( haven't seen any, tho), and eventual tape worms. New horses get quarantined and wormed, then tested, before joining the herd.
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post #5 of 12 Old 12-02-2013, 03:37 PM
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There are probably as many variations on worming schedules as there are stars in the sky

My method is to deworm spring and fall, with FECs in between. Despite less than ideal conditions (as far as cross-contamination goes) my horse's FECs have always come up clean, so I've never had to deworm more frequently.
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post #6 of 12 Old 12-02-2013, 07:50 PM
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I worm spring and fall equimax in spring and quest plus in fall do a fecal once a year now.
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post #7 of 12 Old 12-02-2013, 07:59 PM
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My vet strongy recommended NOT deworming regularly. She's found that rotational worming (every 2-3 months) has been causing increased resistance in worms, causing more extreme poisons be used in the dewormers.
SO I get fecals done every 3 months, so far nothing has popped up (I have a pretty closed herd) - but even still once a year for 1 month I feed 1 tablespoon twice a day of Diatomaceous Earth.

At our rescue we had a mare and colt come in with serious worms, they were fed 1 tablespoon twice a day of DE - after one month the worms were mostly gone and we switched them to 1 tablespoon a day and the next month they were completely clean. My vet agreed this was a safer method, especially for the colt. Killing the worms off slowly is safer for their gut and helps prevent impaction from massive die-offs of worms who are all killed at once from a chemical wormer.
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post #8 of 12 Old 12-02-2013, 08:11 PM
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I do a Panacur purge once a year, and Quest Plus once a year. I use the cattle wormer liquid for the Panacur...No way I could afford all those Power Packs fo rmy herd!!

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post #9 of 12 Old 12-02-2013, 09:49 PM
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We have a boarding stable where we normally have around 13 horses. We worm all of the horses at the same time twice a year when everyone gets there vaccines and we make sure any new horse is wormed and vaccinated before stepping hoof on the premises. Because all of the horses are wormed at the same time and we keep the stable VERY clean that we don't have to worry about anyone getting very wormie before the next worming. If we suspect something between scheduled worming we will have a fecal test done.
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post #10 of 12 Old 12-03-2013, 11:18 AM
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Safeguard has a "which de-wormer and when" rotational chart but it is best to have a fecal done and see which horses even need de-worming, and with what. Our vet recommends Anthelcide in the spring and Equimax or Zimectrin Gold in the late fall here, with one fecal test per horse each year.
Incoming projects and rescues are in quarantine for a month and in that time I do Power Pack them and follow that with Zimectrin Gold a few weeks later. They are then free and clear to be on our spring and fall de-worming schedule.

Each horse is different. Even in the same pasture one can be a parasite magnet while the other may always fecal test neg.
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