RVC/FAO guide to Veterinary Parasitology
Baermann technique: Procedure step 6

Check sedimented sample in a petri dish for the presence of larvae.

This may be all that is required to diagnose the presence of nematode parasites but often more detailed examination is required.

This is because other parasitic or free-living nematode life-cycle stages may be present if the faecal sample was not fresh when processed or if it was collected from the ground.