Differentiating Haemonchus contortus from other trichostrongyles
Differentiating Haemonchus contortus from other trichostrongyles
To differentiate Haemonchus contortus eggs from other similar-looking trichostrongyle eggs, a specialized fluorescein-labeled peanut agglutinin stain can be applied. H contortus eggs take up the stain and fluoresce under UV light, as this photomicrograph shows; other trichostrongyle eggs (yellow arrowhead) do not fluoresce.
Courtesy of Dr. Antoinette Marsh.
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