This egg was recovered in a fecal flotation from a parrot. What is it?
Case and photo provided by Oklahoma State University veterinary student Heather Rhoden.
This is a capillarid egg. Capillarid eggs are morphologically similar to whipworm (Trichurisspp.) eggs in that they are oblong and “barrel-shaped” with bipolar plugs. However, capillarid eggs typically have plugs that are asymmetrical about the straight-line access, and have an ornamental (e.g. pitted or roughened) surface. In birds, capillarid species parasitize different regions of the gastrointestinal tract including the esophagus, crop, and small intestine.
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