title: [Effect of the number of miracidia and age of the mollusc on the survival and degree of infestation of Lymnaea glabra Müller by Fasciola hepatica L].
abstract: This report summarizes studies on the infection of Lymnaea glabra by Fasciola hepatica in connection with the following: 1) the number of miracidia for a single exposure; 2) the snail height (0,5 mm, 1 mm or 2 mm) at miracidial exposure. Snails with evolutive infection were only observed in 0,5- and 1-mm-high groups at day post-exposure. In 0,5-mm-high groups, the percentage of these infected snails showed a peak for 5 miracidia per snail. In 1-mm-high groups, there was no infected snails until 5 miracidia per snail; then the percentage of infected snails increased in connection with the number of miracidia used per snail. L. glabra is an accidental snail host for F. hepatica.
mesh_terms: D000375:Aging; D000818:Animals; D005210:Fasciola hepatica / Q000254:growth & development*; D006790:Host-Parasite Interactions; D007814:Larva / Q000254:growth & development; D008195:Lymnaea / Q000469:parasitology*
vernacular_title: Influence du nombre de miracidiums et de l'âge du mollusque sur la survie et le degré d'infestation de Lymnaea glabra Müller par Fasciola hepatica L.