نتایج جستجو برای: trematode
تعداد نتایج: 1578 فیلتر نتایج به سال:
BACKGROUND Snail intermediate hosts play active roles in the transmission of snail-borne trematode infections in Africa. A good knowledge of snail-borne diseases epidemiology particularly snail intermediate host populations would provide the necessary impetus to complementing existing control strategy. MAIN BODY This review highlights the importance of molecular approaches in differentiating ...
In aquatic ecosystems, dense populations of snails can shed millions of digenean trematode cercariae every day. These short-lived, free-living larvae are rich in energy and present a potential resource for consumers. We investigated whether estuarine fishes eat cercariae shed by trematodes of the estuarine snail Cerithidea californica. In aquaria we presented cercariae from 10 native trematode ...
From complete mitochondrial DNA sequence of Fasciola hepatica available in Genbank, specific primers were designed for a conserved and repetitive region of this trematode. A pair of primers was used for diagnosis of infected Lymnaea columella by F. hepatica during the pre-patent period simultaneously with another pair of primers which amplified the internal transcribed spacer (ITS) region of rD...
Virtually all organisms function as hosts for a variety of symbionts that can interact and form complex communities. Recently, research has begun to highlight the influence that symbiont communities can have on human and animal health through multi-symbiont interactions. Here, we examine symbiont community patterns both by host species and specific symbiont interactions in California freshwater...
The progenetic opecoelid trematode Coitocaecum parvum can reproduce either precociously by selfing in its second intermediate amphipod host or by mating in its normal definitive fish host. In this study, we describe and compare the infection parameters and some life history traits of both egg-producing worms and non-egg producing worms in both their second intermediate and definitive hosts. We ...
The American marten (Martes americana) was reintroduced to both the Upper (UP) and northern Lower Peninsula (NLP) of Michigan during the 20th century. This is the first report of endoparasites of American marten from the NLP. Faeces from live-trapped American marten were examined for the presence of parasitic ova, and blood samples were obtained for haematocrit evaluation. The most prevalent pa...
The Great Barrier Reef holds the richest array of marine life found anywhere in Australia, including a diverse and fascinating parasite fauna. Members of one group, the trematodes, occur as sexually mature adult worms in almost all Great Barrier Reef bony fish species. Although the first reports of these parasites were made 100 years ago, the fauna has been studied systematically for only the l...
a survey of helminth parasites of domestic fowl carried out in faisalabad (pakistan) between 1994 and 1996 showed a high prevalence of nemaodes infestation in broiler and local poultry. ascardia galli and heterakis spp. were more prevalent in both groups of birds. syngamus tracheae and capillaria spp. were also present in both groups . raillietina spp. were the only cestode found in both the gr...
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