How often and when should you do your Worm Count (Faecal Egg Test) For Your Horse?

Many people ask how often they should be doing worm counts for their horses?

With a worm count programme in place, we can understand more about the parasites affecting your horse and also treat effectively.

Testing dropping samples for worm eggs, may seem a strange thing to do but it matters, because if we continue to use wormers to blanket worm our equine species we will have resistance, to every single worming chemical group that is available on the market today.

At the moment, there are no new chemicals we can use, and we have some resistance to nearly all of the current chemical groups in wormers, and it’s very unlikely we will have new treatments in the future!

So the idea is that now rather than just worming our horses, we actually worm count them instead.

When do we Worm Count?

Worm counts are done between the period of March through to November depending on the weather.

When we test at the end and the beginning of the year this is based on the weather! (as it has a massive impact)

It works out roughly about four worm counts a year, once every 10 weeks.  A standard EFECS test, looks  for roundworm, Small Redworm (small strongyles) and Large Redworm (Large Strongyles).

In addition to the standard test every 8-10 weeks, we recommend now the equisal saliva test for tapeworm. 

Again, this should be done about once every six months because tapeworm has a six-monthly life cycle. 

We advise you to do a saliva test in the spring and autumn six months apart. 

This program gives us a good clear picture of what is going on with your horse. 

You may also need to test for pinworm, these are separate tests you can do at any time.

In addition to this testing regimen, you need to give a wormer between December and January (regardless of what your worm counts have been throughout the year). To treat for inhibited encysted small red worm.  To understand more about this read this post:

There is now a new blood test available for inhibited encysted small red worm, which some vets will do. 

It gives you an indication of if your horse has got encysted small red worm over the winter months. 

The limitations with this are if your horse has had any burden of red worm throughout the previous year it will show up and that’s why at the moment the blood tests cannot be relied upon.

How EFECS make this easier for you?

So you could go to your calendars now and count the weeks and add in reminders.

But do you forget or miss them?

If you do we have good news! 

The EFECS worm programme will always send you reminders on when your next worm count is due!

Now you could just be on the standard program, get your reminder; buy your test etc.

Or if you want ALL the hassle taken away we have a subscription!

You pay a small amount every month,

We send you your standard tests and tapeworm tests when you need them!

No more remembering to order, worrying about finding the time, or funds!

You just have to do the test and post back to us.

If this sounds good to you click here to learn more and sign up for the monthly subscription,


As a subscription member you get:

Full History Access so you can see the bigger picture for each horse online easily anytime you wish.

The opportunity to earn an affiliate commission if your friends sign up (you get a special link you can share) 

And special discounts and offers from friends of EFECS

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