Although this parasite normally affects sheep and cattle, it can occasionally be found in horses. It is most commonly found on wet or heavy land, particularly where reeds are prevalent, because of the intermediate host of the liver fluke which is a small mud snail Galba (Lymnaea) truncatula.
This test is performed in a similar way to a faecal egg count using the modified McMaster technique but with a different solution used for flotation of the heavier liver fluke eggs. The technique uses a centrifuge to separate out any eggs as well as removing the sediment from the sample, making it much easier to identify them under the microscope – this method is far superior to a simple strained method.
It is thought the liver fluke is less able to complete its lifecycle in horses than other animals. Therefore to maximise detection we request you take three separate faecal samples on three consecutive days, refrigerating the first two samples before posting to us on the third day. A composite sample of dung is then prepared using a centrifuge and examined under the microscope to look for liver fluke worm eggs.
Direct From the Lab
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