Influence of shell size of Lymnaea columella on infectivity and development of Fasciola hepatica

Experimental infections of Lymnaea columella with Fasciola hepatica were carried out to determine the influence of shell size on the infection rate and on the outcome of rediae and cercariae. Snails were divided into seven groups according to shell size: 2–4 mm, 5–6 mm, 7–8 mm, 9–10 mm, 11–12 mm, 13...

Full description

Saved in:
Bibliographic Details
Published in:Journal of helminthology 2008-03, Vol.82 (1), p.77-80
Main Authors: Coelho, L.H.L., Guimarães, M.P., Lima, W.S.
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Cattle
Cercaria
Containers
Eggs
Fads
Fasciola hepatica
Fasciola hepatica - physiology
Fundamental and applied biological sciences. Psychology
Host parasite relation
pathogenicity
Host-Parasite Interactions
Infections
Infectious diseases
Infectivity
Influence
Invertebrates
Life Cycle Stages
Lymnaea - anatomy & histology
Lymnaea - parasitology
Lymnaea columella
Medically important nuisances and vectors, pests of stored products and materials: population survey and control
Mollusks
Municipalities
Nemathelminthia. Plathelmintha
Parasites
Parasitology - methods
Shells
Snails
Vectors. Intermediate hosts
Worms
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Experimental infections of Lymnaea columella with Fasciola hepatica were carried out to determine the influence of shell size on the infection rate and on the outcome of rediae and cercariae. Snails were divided into seven groups according to shell size: 2–4 mm, 5–6 mm, 7–8 mm, 9–10 mm, 11–12 mm, 13–14 mm and 15 mm or more. One hundred snails in each group were infected by using four miracidia for each snail. Snails with larger shell size showed a lower infection rate, the groups presenting the highest (79%) and lowest (2%) proportions of positives being those of 5–6 mm and 15 mm or more, respectively. Cercariae were present in 21% of them at 31 days post-infection, and cercarial shedding was observed 61 days post-infection. It was concluded that there is a non-linear negative association between shell size and infection rate.
ISSN:0022-149X
1475-2697
DOI:10.1017/S0022149X08873579