Atlas of livestock parasites
digitized collection of microscopical preparations

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Trichostrongylus axei (sheep, goats)



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Trichostrongylus axei

Stomach hair worm, bankrupt worm

Trichostrongylus spp. egg
Approximately 80 µm long
Broad ellipse
Barrel-shaped side walls
Blastomeres present, number vary
It is not often possible to identify strongyle eggs to genus level as the eggs of most strongylid and trichostrongylid species are similar in appearance and overlapping in size.
If identification is necessary the faecal sample must be cultured to provide L3 larvae for further examination !!!

The identification of L3 larvae
Can be approached according to individual requirements.
To access the description of a particular species, click on the relevant image in the picture index below.
To identify an unknown L3, proceed directly to the identification key which leads the user systematically through the step-by-step identification process. The flowchart below is a step-by-step identification key.

16 gut cells
Head tapered
Sheath forms short cone
Length 560-796 µm


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Source: T.axei
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T.axei head
Source: T.axei head
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T.axei tail
Source: T.axei tail
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