A storm of manure tests is sweeping through Worm&Co, and we regularly get the question: how do I read the results?
A manure test alone does not determine whether a horse needs treatment. The questionnaire, the horse’s health and age, seasonal parasite pressure, and existing records all help decide if treatment is necessary. Manure testing is custom work, which is why we always recommend filling out the questionnaire—even if your horse tests negative or only slightly positive.
Positive: This means eggs of a specific gastrointestinal worm have been found and treatment is recommended. The exact treatment depends on several factors. If you haven’t yet completed the questionnaire via the link, please do so. You’ll receive a follow-up email with tailored advice.
Positive – treatment optional: This means eggs of a specific gastrointestinal worm have been found, but whether treatment is needed will depend on the questionnaire. A healthy and fit horse may not need treatment, while a horse showing symptoms related to gastrointestinal worms might benefit from it.
Negative: No worm eggs were found at the time of testing, and treatment is generally not necessary. However, the manure test is not the only deciding factor, so we still recommend filling out the questionnaire even if the result is negative.
It’s important to understand that all horses carry worms and shed eggs, and they are usually quite capable of building their own resistance. This is completely normal and part of a natural process, which should only be interrupted if absolutely necessary.
Discover the full range of manure testing options at Worm&Co on our website!
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