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Lymnaea neotropica and Lymnaea viatrix, potential intermediate hosts for Fascioloides magna

Published online by Cambridge University Press:  18 October 2012

R. Sanabria ,
R. Mouzet ,
J. Pankrác ,
F.F. Djuikwo Teukeng ,
B. Courtioux ,
A. Novobilský ,
J. Höglund ,
M. Kašný ,
P. Vignoles  and
G. Dreyfuss
...Show all authors
R. Sanabria
Affiliation:
CEDIVE, Fac. Cs. Veterinarias, Universidad Nacional de La Plata, Alvear 803, (7130) Chascomus, Buenos Aires, Argentina
R. Mouzet
Affiliation:
INSERM U 1094, Faculties of Medicine and Pharmacy, 87025Limoges, France
J. Pankrác
Affiliation:
Laboratory of Helminthology, Faculty of Science, Charles University, Vinicna 7, 128 44Prague, Czech Republic
F.F. Djuikwo Teukeng
Affiliation:
INSERM U 1094, Faculties of Medicine and Pharmacy, 87025Limoges, France Department of Animal Biology and Physiology, Faculty of Science, B.P. 812, Yaoundé, Cameroon
B. Courtioux
Affiliation:
INSERM U 1094, Faculties of Medicine and Pharmacy, 87025Limoges, France
A. Novobilský
Affiliation:
Department of Biomedical Sciences and Veterinary Public Health, Section for Parasitology Swedish University of Agricultural Sciences (SLU), 750 07Uppsala, Sweden
J. Höglund
Affiliation:
Department of Biomedical Sciences and Veterinary Public Health, Section for Parasitology Swedish University of Agricultural Sciences (SLU), 750 07Uppsala, Sweden
M. Kašný
Affiliation:
Laboratory of Helminthology, Faculty of Science, Charles University, Vinicna 7, 128 44Prague, Czech Republic
P. Vignoles
Affiliation:
INSERM U 1094, Faculties of Medicine and Pharmacy, 87025Limoges, France
G. Dreyfuss*
Affiliation:
INSERM U 1094, Faculties of Medicine and Pharmacy, 87025Limoges, France
D. Rondelaud
Affiliation:
INSERM U 1094, Faculties of Medicine and Pharmacy, 87025Limoges, France
J. Romero
Affiliation:
CEDIVE, Fac. Cs. Veterinarias, Universidad Nacional de La Plata, Alvear 803, (7130) Chascomus, Buenos Aires, Argentina
*
*Fax: 33.5.55.43.58.63 E-mail: [email protected]
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Abstract

Experimental infections of two South American lymnaeid populations with Fascioloides magna were carried out to determine whether these snails may sustain larval development of this digenean and, if so, to quantify their potential for cercarial production. The reference group was a French population of Galba truncatula infected and raised according to the same protocol. According to the internal transcribed sequence (ITS)-1 segment of their genomic rDNA, these South American populations were identified as Lymnaea neotropica (origin, Argentina) and Lymnaea viatrix var. ventricosa (origin, Uruguay). In the snail groups followed for cercarial shedding, longer prepatent periods and lower numbers of shed cercariae were noted in South American lymnaeids. In other snails dissected at day 65 post-exposure, the redial and cercarial burdens of F. magna found in the bodies of L. neotropica and L. v. ventricosa were significantly lower than those noted in G. truncatula. Compared to the total cercarial production noted in the dissected snails, the percentage of cercariae that exited from snails was 51.3% for G. truncatula, 32.2% for L. neotropica and 46.8% for L. v. ventricosa. The two South American species of snails can thus be considered as potential intermediate hosts of F. magna.

Type
Research Papers
Information
Journal of Helminthology , Volume 87 , Issue 4 , December 2013 , pp. 494 - 500
Copyright
Copyright © Cambridge University Press 2012 

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