Results 121 to 130 of about 492 (158)
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Paramphistomum daubneyi : the development of redial generations in the snail Lymnaea truncatula
Parasitology Research, 1996Rediae of Paramphistomum daubneyi were counted and measured in Lymnaea truncatula to elucidate the variability in the numbers of free rediae and cercariae occurring between naturally infected snails and experimental single-miracidium infections. Experiments were performed using one miracidium per snail and snail raising was carried out at 20 degrees C.
M, Abrous, D, Rondelaud, G, Dreyfuss
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Experimental Infection of Lymnaea glabra and L. truncatula by Fasciola hepatica
The Journal of Parasitology, 1984Epidemiological studies on human fascioliasis recorded the role of Lymnaea glabra as an accidental intermediate host in the life-cycle of the parasite in the region of Limousin, France (Rondelaud, 1980, Ann. Parasit. Hum. Comp. 55:393405). Only snails averaging 0.5 to 1 mm in length at miracidial exposure (between 1 hr and 8 days of life) supported the
D, Bouix-Busson, D, Rondelaud, D, Barthe
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Hemocyte production in trematode-infectedLymnaea truncatula
Parasitology Research, 1991In trematode-infected Lymnaea truncatula, as in other lymnaeids, hemocytes are formed in the connective tissue. Mitoses are found singly in blood vessels or connective tissue or occur in hemocyte nodules, developing along the mantle epithelium or associated with blood sinuses. The so-called hemocyte-producing organ in L. truncatula is not equivalent to
J F, Monteil, M, Matricon-Gondran
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The Journal of parasitology, 1976
Experiments were performed to study the effect of water temperature on the host-finding capacity (snail localization, attachment, and penetration) of Fasciola hepatica miracidia. Specimens of Lymnaea truncatula were exposed to miracidia labeled in vivo with radioselenium, and the radioactivity which subsequently was confined to the snails was taken as ...
N O, Christensen, P, Nansen
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Experiments were performed to study the effect of water temperature on the host-finding capacity (snail localization, attachment, and penetration) of Fasciola hepatica miracidia. Specimens of Lymnaea truncatula were exposed to miracidia labeled in vivo with radioselenium, and the radioactivity which subsequently was confined to the snails was taken as ...
N O, Christensen, P, Nansen
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The effects of low temperature on Lymnaea truncatula
Zeitschrift f�r Parasitenkunde, 1976A group of 20 young and another of 20 adult Lymnaea truncatula were abundantly supplied with food and kept continuously under cold conditions (5 degrees C) in the laboratory for 3 months and the effects of low temperature on their behavior, growth and reproduction were studied. The results indicate that at low temperature the activity of L. truncatula
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Oviposition of Lymnaea truncatula infected by Fasciola hepatica under experimental conditions
Parasitology Research, 1999Experimental infections of Lymnaea truncatula by Fasciola hepatica (one, two, or three miracidia per snail) were carried out under laboratory conditions to analyze the oviposition of infected snails and determine the characteristics of their egg masses.
G, Dreyfuss +2 more
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Histochemical changes in the digestive gland of Lymnaea truncatula infected with Fasciola hepatica
Zeitschrift f�r Parasitenkunde, 1973Histochemical studies of the digestive gland of Lymnaea truncatula have revealed features of the normal digestive processes in which at least 3 cell types are involved: digestive cells, mucus cells and basiphil cells. An intracellular vacuolar digestive system containing lysosomal enzymes appears to operate in the digestive cells.
M N, Moore, D W, Halton
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Fasciola hepatica : an unusual development of redial generations in an isolate of Lymnaea truncatula
Journal of Helminthology, 1999Single-miracidium infections of Lymnaea truncatula by Fasciola hepatica were experimentally carried out to identify the redial generations of this trematode when the larval development was unusual (when the first-appearing mother redia, or R1a redia ...
Augot, D. +4 more
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Redial generations of Fasciola gigantica in the pulmonate snail Lymnaea truncatula
Journal of Helminthology, 1992ABSTRACTLymnaea truncatula, 4 mm in height, were subjected to infection by a single miracidium of Fasciola gigantica, then raised at 23°C until day 60 of the experiment. Histological study of these snails demonstrated a mean redial burden of 34 parasites at day 60, of which one third were degenerating forms. The mean number of living independent rediae
, Rakotondravao +3 more
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British Veterinary Journal, 1968
SUMMARY Observations are described of the use of a soil sampling technique to recover and estimate densities of L. truncatula in field habitats. Results of counts on farms are related to type and incidence offascioliasis, and the use of this technique in studies of fascioliasis is discussed.
J G, Ross, J, O'Hagan
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SUMMARY Observations are described of the use of a soil sampling technique to recover and estimate densities of L. truncatula in field habitats. Results of counts on farms are related to type and incidence offascioliasis, and the use of this technique in studies of fascioliasis is discussed.
J G, Ross, J, O'Hagan
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