Abstract：
:The development of redial burden and cercarial shedding were studied in two groups of Lymnaea truncatula subjected to successive cross-exposures to one miracidium of Paramphistomum daubneyi and one of Fasciola hepatica per snail, or vice versa. The results were compared with those obtained in controls subjected to two unimiracidial exposures to the same trematode species. The infection rate was 61% in the group cross-exposed to P. daubneyi/F. hepatica and 37% in that cross-exposed to F. hepatica/P. daubneyi; it was 37% in the control group exposed to F. hepatica and 21% in that exposed to P. doubneyi. Snails harboring larval forms of both trematodes were few in number in cross-exposed groups and the redial burden was low, with one trematode dominating over the other. Free cercariae of F. hepatica and those of P. daubneyi were significantly more numerous at day 35 in the group cross-exposed to P. daubneyi/F. hepatica than in the controls or the other cross-exposed group. Mixed cercarial sheddings were obtained from 40% of snails with emission in the group cross-exposed to P. daubneyi/F. hepatica and from 21% of those in the F. hepatica/P. daubneyi group. The numbers of P. daubneyi metacercariae were significantly greater in the group cross-exposed to P. daubneyi/F. hepatica than in the other cross-exposed group, whereas no significant difference in mean numbers was noted for the F. hepatica cysts. Repartition of metacercariae over the patent period was clearly more irregular for P. daubneyi than for the other trematode.
journal_name
Parasitol Resjournal_title
Parasitology researchauthors
Augot D,Abrous M,Rondelaud D,Dreyfuss Gdoi
10.1007/s004360050175subject
Has Abstractpub_date
1996-01-01 00:00:00pages
623-7issue
7eissn
0932-0113issn
1432-1955journal_volume
82pub_type
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journal_title：Parasitology research
pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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更新日期：2012-08-01 00:00:00
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pub_type： 杂志文章,多中心研究,随机对照试验
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pub_type： 杂志文章
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更新日期：2005-10-01 00:00:00
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pub_type： 杂志文章
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