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The effect of moisture supply upon the development and hatching of the eggs of Nematodirus battus

Published online by Cambridge University Press:  06 April 2009

J. T. Parkin
J. T. Parkin
Affiliation:
Department of Zoology, University of Edinburgh, West Mains Road, Edinburgh EH9 3JT
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Extract

Experiments were carried out to investigate the effect of variations in humidity and osmotic pressure upon the development and hatching of the eggs of Nematodirus battus. It was found that no development or hatching took place unless there was free water available, though humidity effects could enhance the subsequent response of the eggs in water. Larvae were found to be very resistant to prolonged exposure to low humidity. The concentration of the hatching medium showed little effect upon development of eggs, though the rate of larval emergence was reduced as the concentration of the culture medium increased. The relevance of this information is discussed in the context of other requirements of the egg stages during their hatching phase and how this may affect the behaviour of this nematode under field conditions.

Type
Research Article
Information
Parasitology , Volume 73 , Issue 3 , December 1976 , pp. 343 - 354
Copyright
Copyright © Cambridge University Press 1976

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