What is a worm count, and why would you do one?

What is a worm count, and why would you do one?

What is a worm egg count?

A worm egg count is a faecal test to look at the worm burden of your dog; if your dog has any worms, what type of worms they are and how many are present. The test results will tell you if your dog needs worming and if your current worming schedule is doing its job.

Why you should consider testing your dog for worms.

  • If you’d rather only treat your dog if worms are present.
  • If you don’t worm your dog at all If you worm your dog sporadically
  • If they like to scavenge or lick grass.
  • Or they are known to take a fancy to dead birds and animals

Then a worm count is crucial.

How to do a worm egg count

It’s dead easy to do a worm count. Buy the kit and follow the instructions that come with it. Take a sample of your dog’s poo, put it in the kit provided and Freepost it to the lab. The kit will fit into any post box. Your results will be emailed to you in a few days in a clear and easy to understand format, along with any recommendations.

We use Feclab as our testing laboratory of choice. The postage to Feclab and lab fees are all included in the price of the kit. It’s fine to put poo in the post as long as it conforms to Royal Mail's required standards for sending samples by post. Ours do.

How does a worm count work?

We use a faecal worm egg count kit in the UK to measure worm burdens in dogs using the McMaster technique. Essentially, the lab takes the poo sample you’ve sent in, puts some of it into a salt suspension and waits for the poo to separate from the eggs. The poo sinks to the bottom, and the eggs float to the top. The eggs are counted under the microscope through a grid, the eggs are counted within the grid, and there is your EPG (eggs per gram) count.

It's advisable to test for lungworm too.

You need a separate kit as it's a different test, and it's just as simple as doing a worm count test. The lungworm test measures larvae, not eggs, using the Baermann Test, similar in principle to the worm test, but looking for larvae. The poo sample is suspended in solution normally for 2-3 hours but can take longer.

What do the results mean?

A typical results sheet will return with these figures next to each worm tested for and looks like this:

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