Eggs of large strongyles are generally smaller than
those of small strongyles, but the different groups
are not distinguishable without detailed
measurements. The same applies for
Trichostrongylus axei. Faecal sample must be
cultured to obtain third-stage larvae (L3) for further
differentiation.
Longitudinal oval, thin-shelled eggs with smooth
surface and evenly rounded poles (strongyle type).
Dark, spherical blastomeres fill eggs only partially.
70-110 x 30-54 µm in size.
