Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2025-01-05T12:20:42.448Z Has data issue: false hasContentIssue false
  • English
  • Français

Redial growth and cercarial productivity of Fasciola hepatica in three species of young lymnaeid snails

Published online by Cambridge University Press:  12 April 2024

P. Vignoles ,
G. Dreyfuss  and
D. Rondelaud
P. Vignoles
Affiliation:
UPRES EA no. 3174, Facultés de Pharmacie et de Médecine, 2 rue du Docteur Marcland, 87025 Limoges Cedex, France.
G. Dreyfuss
Affiliation:
UPRES EA no. 3174, Facultés de Pharmacie et de Médecine, 2 rue du Docteur Marcland, 87025 Limoges Cedex, France.
D. Rondelaud*
Affiliation:
UPRES EA no. 3174, Facultés de Pharmacie et de Médecine, 2 rue du Docteur Marcland, 87025 Limoges Cedex, France.
*
*Author for correspondence Fax: 33 5 55 43 58 93, E-mail: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Experimental infections of 1-mm high snails using three populations of Lymnaea (L. glabra, L. ovata and L. truncatula) and a cattle strain of Fasciola hepatica miracidia were carried out under laboratory conditions to determine if the snail species had an effect on the number of free rediae, their growth, and cercarial productivity in relation to each redial category (R1a, R1b, R2a, or R2b/R3a). The total number of rediae ranged from 6.4 to 7.5 per snail. The mean body length of rediae varied from 1–1.2 mm (R1a) to 0.3–0.4 mm (R2b/R3a). The width of the intrapharyngeal lumen also varied from 26.0–38.8 μm to 3.0–4.2 μm, respectively. The redial category had a significant effect on both measurements, whereas snail species only had a significant influence on body length. The mean number of cercariae produced by all living rediae at day 49 post-exposure ranged from 63.0 in L. glabra to 87.2 in L. truncatula. In L. ovata and L. truncatula, 55.8% and 58.6% of cercariae, respectively, were produced by R2a rediae, whereas 53.9% of cercariae in L. glabra were formed by the R1b rediae. When young snails were infected with F. hepatica, the species of snail had an effect on the number of living rediae, their length and their cercarial productivity.

Type
Research Article
Information
Journal of Helminthology , Volume 76 , Issue 3 , September 2002 , pp. 269 - 272
Copyright
Copyright © Cambridge University Press 2002

References

Augot, D. & Rondelaud, D. (2001) Cercarial productivity of Fasciola hepatica in Lymnaea truncatula during an usual or an unusual development of redial generations. Parasitology Research 87, 631–633.Google ScholarPubMed
Augot, D., Rondelaud, D., Dreyfuss, G., Cabaret, J., Bayssade-Dufour, C. & Albaret, J.L. (1998) Characterization of Fasciola hepatica redial generations by morphometry and chaetotaxy under experimental conditions. Journal of Helminthology 72, 193–198.CrossRefGoogle ScholarPubMed
Augot, D., Abrous, M., Rondelaud, D., Dreyfuss, G. & Cabaret, J. (1999) Fasciola hepatica: an unusual development of redial generations in an isolate of Lymnaea truncatula . Journal of Helminthology 73, 27–30.CrossRefGoogle Scholar
Boray, J.C. (1978) The potential impact of exotic Lymnaea spp. on fascioliasis in Australasia. Veterinary Parasitology 4, 127–141.CrossRefGoogle Scholar
Busson, P., Busson, D., Rondelaud, D. & Pestre-Alexandre, M. (1982) Données expérimentales sur l'infestation des jeunes de cinq espèces de limnées par Fasciola hepatica L. Annales de Parasitologie Humaine et Comparée 57, 555–563.CrossRefGoogle ScholarPubMed
Glöer, P. & Meier-Brook, M. (1994) Süsswassermollusken. Ein Bestimmungsschlüssel für die Bundesrepublik Deutschland. 136 pp. Deutscher Jugendbund für Naturbeobachtung, Hamburg, Germany.Google Scholar
Kendall, S.B. (1950) Snail hosts of Fasciola hepatica in Britain. Journal of Helminthology 24, 63–74.CrossRefGoogle Scholar
Préveraud-Sindou, M. & Rondelaud, D. (1995) Localization and outcome of Fasciola hepatica sporocysts in Lymnaea truncatula subjected to mono- or plurimiracidial exposures. Parasitology Research 81, 265–267.CrossRefGoogle ScholarPubMed
Rondelaud, D. & Barthe, D. (1978) Etude histologique du développement de Fasciola hepatica chez Lymnaea truncatula, L. glabra et L. palustris infestées dès leur naissance. Comptes Rendus de la Société de Biologie 172, 1194–1200.Google Scholar
Stat-Itcf (1988) Manuel d'utilisation. 210 pp. Institut technique des céréales et des fourrages, Service des études statistiques, Boigneville, France.Google Scholar