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Our laboratory uses microscopy to examine equine faecal samples for gastrointestinal worm eggs and relevant protozoa.
We identify parasite eggs where possible and quantify egg shedding in eggs per gram (EPG). These results help assess pasture contamination risk and support targeted parasite-control decisions.
Our lungworm screen uses the Baermann technique to examine faecal samples for lungworm larvae, including Dictyocaulus arnfieldi.
Equine lungworm infections are particularly associated with horses grazing alongside donkeys, which can carry and shed the parasite without showing obvious symptoms.
Horses may develop coughing or respiratory irritation following exposure. However, infected horses do not always shed detectable lungworm larvae in their faeces.
We recommend considering this test for:
Lungworm sample collection: Collect fresh faecal samples over three consecutive days. This is an essential requirement for the lungworm screen.
Keep the samples in a cool place during collection, following the instructions supplied with your kit. Do not refrigerate or freeze pooled lungworm samples.
Return the completed samples promptly to our laboratory using the packaging provided.
Important: This test screens for parasites present in the submitted samples. A negative result does not completely exclude gastrointestinal worms or lungworm infection. Horses with persistent respiratory symptoms should undergo veterinary assessment.
If lungworm screening is not required, our Horse Worm Count Test offers routine gastrointestinal parasite monitoring.
Our combined equine screening package examines faecal samples for gastrointestinal parasite eggs and lungworm larvae. Our laboratory identifies and reports relevant findings using microscopy.
Gastrointestinal worm egg counts are reported in eggs per gram (EPG), with quantitative results where appropriate. Our routine equine reporting threshold is 50 EPG.
Lungworm findings are reported using a qualitative interpretation of None detected, Low, Moderate or High, where applicable.
Your laboratory report includes the parasites screened for, relevant findings and supporting interpretation. Free after-test advice is also available.
Please note: Routine faecal egg counts cannot reliably distinguish large from small strongyle eggs. They also cannot detect encysted small redworm larvae. Tapeworms and pinworms may not appear in routine faecal samples, so additional testing may be required.
Horses infected with Dictyocaulus arnfieldi may not shed detectable larvae. Consequently, a negative lungworm result does not rule out infection, especially where respiratory symptoms or exposure to donkeys raise concern.
Our laboratory findings should be considered alongside the horse’s clinical history, age, grazing conditions and veterinary advice.
Worm count: Testing is completed, reviewed and results issued within 24 hours of arrival at our laboratory, calculated in working days.
Lungworm screen: Lungworm testing is an extended laboratory process. Results are issued within 48 hours of arrival at our laboratory, calculated in working days.
Please note: Laboratory testing is undertaken Monday to Friday, excluding bank holidays. Weekends and bank holidays are not included in our stated turnaround times.
Lungworm sample collection: Collect faecal samples over three consecutive days. This is an essential requirement for the lungworm screen. Keep samples in a cool place. Do not refrigerate or freeze pooled lungworm samples.
Sample return: Follow the collection instructions and return samples promptly, preferably early in the working week.
This kit is prepared for one cat and includes the materials needed to collect and return the required faecal sample or samples to our laboratory.
Select the appropriate parasite test for your animal(s), or use our quick guide to find the most suitable option.
Collect the sample using your test kit and return it to our laboratory using the free, 24-hour tracked delivery which is included in your kit.
The laboratory team analyses your sample and provides a detailed PDF report via email, with access to our clinical team for further guidance if needed.
