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.
