Issue |
Ann. Parasitol. Hum. Comp.
Volume 55, Number 5, 1980
|
|
---|---|---|
Page(s) | 571 - 581 | |
DOI | https://doi.org/10.1051/parasite/1980555571 | |
Published online | 20 September 2017 |
Mémoire
Motilité et infestivité des larves L1 de Protostrongylides :
Facteurs de variation
Motility and infestivity of first-stage Protostrongylid larvae. Factors of variation.
Institut agronomique et vétérinaire Hassan II, B.P. 704, Rabat-Agdal, Maroc.
Accepté : 17 Avril 1980
Des Mollusques terrestres ont été infestés afin de relier l’infestivité et la mobilité des larves L1 de Protostrongylidés. Divers facteurs, tels l’âge des larves, leur densité, la composition du liquide de conservation et la température, ont été appréciés quant à leur action sur la mobilité des larves L1.
Une relation nette existe entre la mobilité et l’infestivité des larves L1. L’âge, la densité des larves, le froid influencent négativement leur activité. L’augmentation de température et des concentrations optimales des sels de magnésium, calcium et sodium provoquent un accroissement de leur mobilité. Des variations induites de motilité provoquent des fluctuations similaires de I’infestivité.
Abstract
The infection of land-snails was realised in order to relate the motility of Protostrongylid first-stage larvae to their infectivity. Various factors such as the age of larvae, their density, the composition of the conservation liquid and the temperature, were tried on the motility of larvae.
A clear relation appeared between motility and infestivity of larvae. The age, density of larvae, and cold did influence negatively their motility. On the contrary increases in temperature and optimal concentrations of magnesium, calcium and sodium salts did influence positively the motility. Induced variations of motility did provoke related fluctuations of infestivity.
© Masson, Paris 1980, transferred to Société Française de Parasitologie
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