scholarly journals Effectiveness of Chaetogaster limnaei as a controller of Fasciola hepatica in experimental infections of Galba truncatula

2018 ◽  
Vol 8 (2) ◽  
pp. 88 ◽  
Author(s):  
FlaviaCaroll Muñiz-Pareja ◽  
PaulAdrian Iturbe-Espinoza
Keyword(s):  
Fasciola Hepatica ◽  
Galba Truncatula ◽  
Experimental Infections

scholarly journals Differences in the compatibility of infection between the liver flukes Fascioloides magna and Fasciola hepatica in a Colombian population of the snail Galba sp.

2014 ◽  
Vol 89 (6) ◽  
pp. 720-726 ◽  
Author(s):  
G. Dreyfuss ◽  
A.C. Correa ◽  
F.F. Djuikwo-Teukeng ◽  
A. Novobilský ◽  
J. Höglund ◽  
...  
Keyword(s):  
Czech Republic ◽  
Larval Development ◽  
Fasciola Hepatica ◽  
Intermediate Hosts ◽  
The Czech Republic ◽  
Galba Truncatula ◽  
Fascioloides Magna ◽  
Post Exposure ◽  
Experimental Infections ◽  
Liver Flukes

AbstractExperimental infections of Galba sp. (origin, Colombia) with allopatric isolates of Fasciola hepatica from France or Fascioloides magna from the Czech Republic were carried out during five successive snail generations to determine if this lymnaeid might sustain complete larval development of either parasite. In snails exposed to F. hepatica, 7 of 400 snails harboured several rediae and only two snails contained a small number of free cercariae on day 50 post-exposure. In contrast, the intensity of F. magna infection in Galba sp. progressively increased from the F1 to F5 generations. Spontaneous cercarial shedding of F. magna occurred in 7 of 100 Galba sp. belonging to the F5 generation and the number of shed cercariae did not differ significantly from that noted in control Galba truncatula of French origin. Galba sp. from Colombia can be added to the list of potential intermediate hosts for F. magna.

Total cercarial output in two populations of Galba truncatula experimentally infected with Fasciola hepatica

2009 ◽  
Vol 84 (1) ◽  
pp. 77-80
Author(s):  
P. Vignoles ◽  
F. Aimeur ◽  
A. Titi ◽  
D. Rondelaud ◽  
A. Mekroud ◽  
...  
Keyword(s):  
Fasciola Hepatica ◽  
Snail Host ◽  
The Other ◽  
Galba Truncatula ◽  
Post Exposure ◽  
Complete Development ◽  
Experimental Infections ◽  
Two Populations

AbstractExperimental infections of pre-adult Galba truncatula (two populations) using one, two, three or five miracidia of Fasciola hepatica per snail were carried out to determine the total number of cercariae produced by snails when they were sacrificed at day 70 post-exposure (at 24°C). When the number of miracidia used for each snail increased at exposure, significant numerical augmentations of live rediae and of intraredial differentiating cercariae were noted. In contrast, only insignificant differences between mean numbers of free cercariae were found. The number of metacercariae produced by each snail (after shedding and/or after dissection) increased in infections with up to three miracidia per snail in each population and strongly decreased in infections with five miracidia per snail. Compared to the other types of infections, the delay of cercarial differentiation noted in the five-miracidia groups was probably due to the volume of the snail host, which would be too small to assure the complete development of five sporocysts.

Calicophoron daubneyiandFasciola hepatica: characteristics of natural and experimental co-infections of these digeneans in the snailLymnaea glabra

2016 ◽  
Vol 91 (1) ◽  
pp. 1-6 ◽  
Author(s):  
P. Vignoles ◽  
A. Titi ◽  
A. Mekroud ◽  
D. Rondelaud ◽  
G. Dreyfuss
Keyword(s):  
Retrospective Study ◽  
Fasciola Hepatica ◽  
Shell Height ◽  
The Other ◽  
Patent Period ◽  
Galba Truncatula ◽  
Experimental Infections ◽  
Calicophoron Daubneyi

AbstractA retrospective study on differentLymnaea glabrasamples collected from central France between 1993 and 2010 was carried out to determine the prevalence of natural co-infections withCalicophoron daubneyiandFasciola hepatica, and to specify the composition of redial burdens. Experimental infections ofL. glabraperformed during the same period of time were also analysed to study metacercarial production of each digenean in co-infected snails. Controls were naturally or experimentally co-infectedGalba truncatula. In natural co-infections, prevalence was 0.7% inL. glabra(186/25,128) and 0.4% inG. truncatula(137/31,345). Low redial burdens were found in these snails, withF. hepaticarediae significantly more numerous inL. glabrathan inG. truncatula(7.5 per snail instead of 5.2). In contrast, the total numbers ofC. daubneyirediae in both lymnaeids were close to each other (4.3 and 3.0 rediae, respectively). In experimentally co-infected groups, prevalence was greater inG. truncatulathan in the other lymnaeid (6.3% instead of 3.0%). Significantly shorter patent periods and lower metacercarial production for each digenean were noted inL. glabrathan inG. truncatula.However, in both lymnaeids, the two types of cercariae were released during the same shedding waves and several peaks during the patent period were synchronous. In spite of a greater shell height forL. glabra, metacercarial production of both digeneans in co-infected snails was lower than that inG. truncatula, thus indicating a still incomplete adaptation between these FrenchL. glabraand both parasites.

scholarly journals Reviewing Fasciola hepatica transmission in the West Indies and novel perceptions from experimental infections of sympatric vs. allopatric snail/fluke combinations

2019 ◽  
Vol 275 ◽  
pp. 108955 ◽  
Author(s):  
Antonio A. Vázquez ◽  
Mercedes de Vargas ◽  
Annia Alba ◽  
Jorge Sánchez ◽  
Pilar Alda ◽  
...  
Keyword(s):  
West Indies ◽  
Fasciola Hepatica ◽  
The West ◽  
Experimental Infections

scholarly journals Intermediate snail hosts of French Fasciola hepatica: Lymnaea neotropica and Lymnaea viatrix are better hosts than local Galba truncatula

2012 ◽  
Vol 111 (5) ◽  
pp. 2011-2016 ◽  
Author(s):  
R. Sanabria ◽  
R. Mouzet ◽  
B. Courtioux ◽  
P. Vignoles ◽  
D. Rondelaud ◽  
...  
Keyword(s):  
Fasciola Hepatica ◽  
Galba Truncatula

Role of the lymnaeid snailPseudosuccinea columellain the transmission of the liver flukeFasciola hepaticain Egypt

2014 ◽  
Vol 89 (6) ◽  
pp. 699-706 ◽  
Author(s):  
Y. Dar ◽  
P. Vignoles ◽  
D. Rondelaud ◽  
G. Dreyfuss
Keyword(s):  
Microsatellite Markers ◽  
Intermediate Host ◽  
Larval Development ◽  
Experimental Infection ◽  
Fasciola Hepatica ◽  
Experimental Infections ◽  
Lymnaeid Snail ◽  
Important Intermediate

AbstractExperimental infections of three EgyptianPseudosuccinea columellapopulations with sympatric miracidia ofFasciolasp., coming from cattle- or sheep-collected eggs, were carried out to determine the capacity of this lymnaeid to support larval development of the parasite. Using microsatellite markers, the isolates of Egyptian miracidia were identified asFasciola hepatica. Apart from being independent of snail origin, prevalences ranging from 60.4 to 75.5% in snails infected with five miracidia ofF. hepaticawere significantly higher than values of 30.4 to 42.2% in snails with bi-miracidial infections. The number of metacercariae ranged from 243 to 472 per cercarial-shedding snail and was independent of snail origin, parasite origin and miracidial dose used for infection. IfP. columellawas subjected to two successive bi-miracidial infections withF. hepatica, prevalence of infection was 63.3%, with a mean of 311 metacercariae per snail. These values were clearly greater than those already reported forRadix natalensisinfected with the same parasite and the same protocol. Successful experimental infection ofP. columellawithF. hepaticasuggests that this lymnaeid snail is an important intermediate host for the transmission of fascioliasis in Egypt.

Fasciola hepatica: development of redial generations in experimental infections of Pseudosuccinea columella

2014 ◽  
Vol 113 (7) ◽  
pp. 2467-2473 ◽  
Author(s):  
Y. Dar ◽  
D. Rondelaud ◽  
P. Vignoles ◽  
G. Dreyfuss
Keyword(s):  
Fasciola Hepatica ◽  
Experimental Infections
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