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Development and survival of the free-living stages of Trichostrongylus tenuis, a caecal parasite of red grouse Lagopus lagopus scoticus

Published online by Cambridge University Press:  06 April 2009

J. L. Shaw ,
R. Moss  and
A. W. Pike
J. L. Shaw
Affiliation:
Institute of Terrestrial Ecology, Banchory, Kincardineshire AB3 4BY
R. Moss
Affiliation:
Institute of Terrestrial Ecology, Banchory, Kincardineshire AB3 4BY
A. W. Pike
Affiliation:
Zoology Department, University of Aberdeen, Aberdeen AB9 2TN, Scotland
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Summary

In the laboratory, yields of infective 3rd-stage larvae of Trichostrongylus tenuis were determined by temperature when moisture was adequate. On the moor, eggs in caecal faeces did not develop to infective larvae during the winter. In summer, development did occur and yields of infective larvae were related to temperature: greatest yields were obtained when mean monthly soil surface temperatures ranged between 76 and 103°C. Rainfall was unimportant, as was desiccation. During summer the mean monthly mortality of infective larvae was 44% but over winter survival was negligible.

Keywords

Trichostrongylus tenuisdevelopmentsurvivalinfective larvae.
Type
Research Article
Information
Parasitology , Volume 99 , Issue 1 , August 1989 , pp. 105 - 113
Copyright
Copyright © Cambridge University Press 1989

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