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A reassessment of the variations in the water content of the larvae of Nematodirus battus during the hatching process

Published online by Cambridge University Press:  06 April 2009

R. N. Perry
R. N. Perry
Affiliation:
Department of biology, The university, Keele, Staffordshire
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Extract

Parkin (1975) considered that the water content of the unhatched 3rd-stage larva of Nematodirus battus increased as it approached hatching, and then fell immediately after the larva escaped from the egg-shell, to the very low value for estimated water content for hydrated individuals of 43·7%. A repetition of this work suggests that these results are in error. Prior to hatching, the water content of larvae remained constant; after hatching there was a marked increase in water content to an estimated value for fully hydrated individuals of 74·5%, a value more in keeping with other findings.

Type
Research Article
Information
Parasitology , Volume 74 , Issue 2 , April 1977 , pp. 133 - 137
Copyright
Copyright © Cambridge University Press 1977

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