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The second ecdysis of Trichostrongylus retortaeformis (Zeder)

Published online by Cambridge University Press:  06 April 2009

H. D. Crofton
Affiliation:
King's College, Newcastle-upon-Tyne

Extract

(1) Ecdysis of the infective larvae of Trichostrongylus retortaeformis was induced by the action of pepsin.

(2) Exsheathment occurred by the loss of the anterior cap.

(3) pH 4−5 is shown to be the most favourable pH for eedysis and survival. This pH is within the range quoted for the stomach contents of rabbits.

(4)Eedysis was complete in the majority of larvae after 60 hr.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1947

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