When it comes to worm testing, worming and looking after your horse’s health we know you have many questions.

Here you will find the answers to the most common questions we get asked:


What is the Worm Count Testing Programme with EFECS?

With the EFECS worm count test programme you worm count roughly every 8-10 weeks, depending upon results from March until November inclusive, roughly 4 worm counts per year, and then we also advise using the Equisal tapeworm saliva test twice  a year, normally spring and autumn.


Regardless of results, you will need to worm in the winter months (December or January) to target the inhibited encysted small red worm and bots.


When you buy a worm count kit from us and then return it for testing, you are entered onto the diary reminder for the next worm count, Equisal test or wormer dependent upon time of year. 


The day the samples arrive back here at the lab they are tested and results sent via email within 24hrs, with a full breakdown of the results and recommendations.



Should I worm my Foal or Test it?


Your foal should be wormed regardless at the age of 6 weeks with a single dose of Panacur Paste to target roundworm, all foals like puppies are born with them, and need worming at 6 weeks, 12 weeks and then 6 months just before weaning. After that they can join a normal worm count programme along with the other ponies.



Can I order outside the UK?


Due to the nature of the testing process we can only deliver kits to the UK for testing, as they are very time sensitive and have to be tested within 48hrs of the sample being taken.  So we are only able to test uk samples



How do I order a test kit?


You can order kits online here https://www.efecs.co.uk/shop/



How long do I have to wait for Results?


less than a week you will have your personalised report



Can I post on a Saturday will it arrive ok?


We always advise to avoid posting over the weekend as the fresher the sample the better.  Our prepaid envelopes are first class so provided we need to receive the sample within 48 hours so if you can avoid testing on the weekends it is better for more accurate results.



How much poo do I need to collect?


Ideally one nugget is more than enough.  Some worm count companies suggest you take a sample from several nuggets, however from the same one is fine, we do not see any difference in the result.



What worms are tested for?


You can test for

Standard test test for

  • Small Strongyles (Small Redworm)
  • Large Strongyles (Large Redworm)
  • Round Worm

You need to buy specific tests for

  • Tapeworm
  • Pinworm


If I test once isn’t that enough for the year?

One worm count is never enough as red worms have a 3 weekly lifecycle and vary depending on the pasture your horse is on, the seasons and so many factors which can change the worm burden, therefore a year round program will help to keep your horse healthier.

Also, a faecal worm egg count can only test for the adult mature egg laying worms, so just because your horse shows a very low burden does not mean they are worm free, and the next test can show a very different picture. This is why we recommend testing every 8-10 weeks as a maximum interval, unless your horse or ponies worm count history indicates otherwise.


Do I have to arrange return postage?


No, all samples come with prepaid postage envelopes so simply test and pop in your nearest post box



What if my pony has tested positive for Pinworm


If they have Pin worm we have found the best course of action is to use 5 day course of a Fenbendazole wormer i.e. 5 day Panacur Guard and scrubbing every surface they have rubbed against. The pin worm eggs are deposited around the anus in a sticky mucus, this is then rubbed off on to the surface ready to reinfect them or the next horse that comes along for a good old rub there!!


I know it’s a real pain to do, but is the only way to really help eradicate the problem and currently  no other wormer really seems to work against pin worm.



My Mare is in foal, should I worm count her?


Yes, however if she is due to foal within the next 3-4 weeks, do not worm count her, she will need worming anyway to protect the foal from threadworm which is passed on through the mares milk, for this use an Ivermectin based wormer i.e. Eraquell, and then once the foal had been born they will both require worming regardless once the foal is 6 weeks old to treat Round worm (foals are born with this regardless a bit like puppies).



Do you offer discounts for more than one horse?


Yes, Bulk discounts can be purchased online and applied automatically.



When will I receive my results

Results are sent within 48 hours of receiving the sample. 

So if you have not received your result within 5-7 days of posting, your sample may have been lost in the post.  Please contact us should this be the case. (link to email)



Is it cheaper to do worm counts and targeted worming or to just buy wormers?


While it can be tempting to think that is cheaper to just buy a wormer, than a worm count and then have to buy a wormer on top.  A study published in the Journal of Veterinary Parasitology found that 80% of the eggs measured were found in 15% of horses.

Therefore, chances are that most horses have low burdens and are unlikely to need to worming! 

So by using worm counts and targeted treatment, therefore you are more likely to save money compared to buying year round wormers.


Have you got a question not answered above?

Email: Info@EFECS.co.uk