A WormTest is a tool you can use to get an indication of the worm burden of your flock.
It involves collecting faecal samples and sending it away to a lab, where they count the number of worm eggs in the faeces. Some labs can also perform a larval culture to identify the types of worms present in the faeces.
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You can obtain a WormTest kit from your nearest Local Land Services office. These kits come complete with sample collection jars, gloves and a postbag to post the sample to the laboratory for analysis.
Private labs and consultants may also provide a similar service.
Here are some top tips for collecting faecal samples for a WormTest:
Plan when you are going to collect the samples â collect early in the week and post as soon as possible to avoid the samples being held in the post over the weekend;
Keep the samples cool until posting but do not refrigerate them. Refrigeration may affect further development of eggs;
Use a sample kit for each mob/group you would like to test. Young animals, such as weaners, are an important group to sample because they can be quite vulnerable to worms;
There are two ways you can collect faecal samples â the first option is to muster the mob to a clean corner of the paddock. Hold them there for 5-10 minutes and then allow them to drift away quietly. Collect samples from a separate dung pile from the ground to fill the 10 sample containers.
The second option is to randomly select 10 animals in a race and collect faecal samples directly from the rectum. Use an individual container for each animal.
If you would like to relate the egg count back to the individual animal, label the containers 1-10 and keep a record of the animal identification corresponding to each number.
Ensure the faecal samples are fresh. It should be moist and warm. If collecting faeces from the ground, choose samples with the least amount of dirt and debris.
Pack the samples as instructed in the kit. Completed the sample submission form and enclose in package
Egg count results are usually available within 48 hours of the samples arriving at the lab. Worm type results are available 8-10 days after the egg count result.
Results from your WormTest can be used to make effective drenching decisions.
A WormTest conducted two weeks after a drench can also be used to check the effectiveness of the drench used.
If you have any questions on WormTests or how to collect samples, contact your nearest Local Land Services on 1300 795 299.
Photo by
Jamesbowyer
Katelyn Braine (pictured) is a district veterinarian with Murray Local Land Services.
