Experimental Ostertagia infection of sheep: pathology following a single high dose of larvae

Authors: Durham PJK, Elliott DC
Publication: New Zealand Veterinary Journal, Volume 23, Issue 9, pp 193-196, Sep 1975
Publisher: Taylor and Francis

Animal type: Livestock, Production animal, Ruminant, Sheep
Subject Terms: Alimentary system/gastroenterology, Nematode, Parasites - internal, Pathology, Research/development
Article class: Scientific Article

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Abstract: One of the authors (Elliott, 1974) noted that two sheep developed severe inappetance and listlessness five days after dosing with infective Ostertagia larvae, at rates of 1 x 10⁵ and 1.4 x 10⁶, respectively. The higher dosed animal died 10 days after dosing, showing at autopsy a severe abomasitis, while the other sheep recovered. Death of a sheep following a single high dose of Ostertagia larvae had not aparently been previously reported. The present small experiment was undertaken in an attempt to repeat this effect, and to study the resulting lesions.

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