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.
