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Factors affecting the establishment of the caecal threadworm Trichostrongylus tenuis in red grouse (Lagopus lagopus scoticus)

Published online by Cambridge University Press:  06 April 2009

J. L. Shaw  and
R. Moss
J. L. Shaw
Affiliation:
1Zoology Department, University of Aberdeen, Aberdeen AB9 2TN, Scotland
R. Moss
Affiliation:
2Institute of Terrestrial Ecology, Banchory, Kincardineshire AB3 4BY, Scotland
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Summary

The resistance of captive reared red grouse to Trichostrongylus tenuis was measured as the proportion of ingested infective 3rd-stage larvae which failed to develop to adult worms. Individual grouse showed wide, repeatable variations in resistance. Seasonal variations may also have occurred. Red grouse acquired little or no effective immunity to reinfection after challenge with a single dose of infective larvae. In trickle-dosed grouse, however, adult worms weakly inhibited the establishment of incoming larvae in an intensity-dependent fashion. Despite this, the proportion of larvae established in trickle infections was similar to that in single-dose challenges.

Keywords

Trichostrongylus tenuisresistancered grouseestablishment
Type
Research Article
Information
Parasitology , Volume 99 , Issue 2 , October 1989 , pp. 259 - 264
Copyright
Copyright © Cambridge University Press 1989

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