Worming & Parasite Control

Worm Egg Count Samples

A faecal or worm egg count (FEC/WEC) is the process of counting the number of worm eggs in faeces (dung) and is used to monitor the worm burden in ruminant species.

The results are presented as ‘eggs per gram’ (epg) of faeces and the number of eggs is an indication of the number of adult worms in the gut of the animal.

How to take a pooled WEC sample

  • Collect fresh faeces from a warm dung pat on the ground
  • Collect approx. 40g (four heaped dessert spoons)
  • Place samples in individual bags or plastic pots which are free from the practice Do not mix the samples. Take ten separate samples per management group.
  • Label the samples with as much information as possible: age of animals, number of animals in the group, condition of the animals, date of collection, date of last wormer use and product used

Store samples in a fridge and deliver to the practice within 24 hours of collection.

WECs can be used to evaluate:

  • Do you need to treat or not?
  • Has previous treatment worked?
  • Are there any signs of resistance in your flock/herd?

Contact us for advice


FREE Worm Egg Count Collection

Wyvern Farm Vets offer a comprehensive sample collection and worm egg counting service.

We will collect the dung from appropriate animals/groups on your farm and return to the practice to perform the egg counting process in our lab. Followed by a full interpretation of results and advice regarding treatment choices.

All collection is FREE of charge, so you only pay for the egg counting; £20 per sample + VAT, or £15 per sample for 10 or more.

Free pots available from reception on request. Drop your sample in to the practice for us to test.

You will receive speedy results and personalised advice.

Take the stress out of remembering when to sample by signing up for free collection by our vet techs, and email us today on: office@wyvernfarmvets.co.uk

Fly Control

Wyvern Farm Vets are offering a NEW service in an attempt to combat the high burdens of flies on farms and subsequent problems seen, such as New Forest Eye and summer mastitis.

This natural fly control works by distributing parasitic wasps/flies/mites in high-risk areas. These insects feed on the fly larvae reducing the overall population of flies on the farm.

If you are interested or want to know more, please contact the practice. We can discuss options & provide quotes for a plan tailored to your individual farm.

Book a Farm Visit or Service


Strictly Necessary

These cookies are required for our website to operate and include items such as whether or not to display this pop-up box or your session when logging in to the website. These cookies cannot be disabled.


We use 3rd party services such as Google Analytics to measure the performance of our website. This helps us tailor the site content to our visitors needs.


From time to time, we may use cookies to store key pieces of information to make our site easier for you to use. Examples of this are remembering selected form options to speed up future uses of them. These cookies are not necessary for the site to work, but may enhance the browsing experience.


We may use advertising services that include tracking beacons to allow us to target our visitors with specific adverts on other platforms such as search or social media. These cookies are not required but may improve the services we offer and promote.

Change Settings

Welcome. You can control how we use cookies and 3rd party services below

Change Settings Accept
Learn how we use cookies