Fasciola Gigantica: the parasite burden inLymnaea natalensisthat died after a cercarial shedding
Autor: | C. Da Costa, Rakotondravao, G. Dreyfuss, Daniel Rondelaud |
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Rok vydání: | 1995 |
Předmět: |
medicine.medical_specialty
Veterinary medicine biology Veterinary (miscellaneous) Fasciola gigantica Intermediate host Anatomy Lymnaea natalensis biology.organism_classification Infectious Diseases Insect Science parasitic diseases Gastropoda medicine Parasite hosting Animal Science and Zoology Parasitology Histopathology Trematoda Mollusca |
Zdroj: | Parasite. 2:177-181 |
ISSN: | 1776-1042 1252-607X |
DOI: | 10.1051/parasite/1995022177 |
Popis: | Summary : Histological studies were carried out in Lymnaea natalensis to determine why the number of Fasciola gigantica cercariae decrea sed when the patent period duration increased. Observations were performed in snails killed between days 30 and 1 35 after exposure, and in snails that died following a cercarial shedding between days 53 and 172 after exposure (at 23 °C). Free and degenerated rediae became increasingly numerous as experiment duration increased; they represented 60 % and more of the redial burden after day 135. Free and degenerated cercariae increased in numbers after day 75, and predominated in older snails. |
Databáze: | OpenAIRE |
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