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How we use larval culture to identify worm species
A WEC counts the number of eggs in a dung sample. However, many species of parasitic worm produce similar looking eggs, commonly known as strongyle eggs (stronglye is an overarching term used when various species of worm are present). Therefore, it is not possible to identify a species from the eggs alone.
A larval culture mixes the dung with a suitable medium so that larvae develop within the eggs and hatch. These larvae are harvested and concentrated so they can be examined under the microscope and their species accurately identified.
How we use larval culture to target AR
Where AR is suspected, larval culture can be used to test whether or not an anthelmintic adequately reduces the egg count after worming.
Often an animal hosts several species but only a single species is resistant. Larval culture can be used to examine which species treatment with the anthelmintic removed and which resistant species remain.
These tests are particularly useful before and after worming as a part of a WEC reduction test.
Your test results
When you request a larval culture we’ll send you a test kit. The kit includes a guide to help you interpret the results. As soon as we’ve completed the test we’ll get in touch and let you know what they are.
Depending of the level of analysis you need, the test will help you decide whether treatment is necessary, the type of treatment required and whether you need any other control methods.