نتایج جستجو برای: trematodes
تعداد نتایج: 1047 فیلتر نتایج به سال:
INTRODUCTION The Baixada Maranhense Microregion currently has the highest prevalence of schistosomiasis in the State of Maranhão, likely because this parasitosis is characterized as an occupational disease, and increased contact with water increases the risk of infection by Schistosoma mansoni. This paper reports the results of the first comprehensive freshwater malacological survey performed i...
In some of the most complex animal societies, individuals exhibit a cooperative division of labour to form castes. The most pronounced types of caste formation involve reproductive and non-reproductive forms that are morphologically distinct. In colonies comprising separate or mobile individuals, this type of caste formation has been recognized only among the arthropods, sea anemones and mole-r...
Neorickettsia helminthoeca, a type species of the genus Neorickettsia, is an endosymbiont of digenetic trematodes of veterinary importance. Upon ingestion of salmonid fish parasitized with infected trematodes, canids develop salmon poisoning disease (SPD), an acute febrile illness that is particularly severe and often fatal in dogs without adequate treatment. We determined and analysed the comp...
A survey for freshwater gastropods carrying trematodes parasites was conducted in Manso Dam and the surrounding areas frequented by tourist, focusing particularly on the Pantanal region. Infected snails were recovered from twelve of the eighteen investigated municipalities and forty-one cercaria-snail pairings were recorded. Among these pairings were several first records of snails serving as i...
&straet-YusuFr A. N. K. & SIDDIQI A. H. 1976. Comparative studies on the lipid composition of some digenetic trematodes. International Journczt for Parasitology 6: 5-8. Neutral lipids and phospholipids of six digenetic trematodes, C~ty/oph#ron c~ty/~phurum, Gastrothytax crumenifer and Gigantocuty~e expl~~tum from water buffalo, Echjnffstom~ rn~Iay~nurn and Fas~iotopsis buski from pig and Zs~pur...
Trematodes have complex life cycles with infective stages in multiple hosts including species of conservation concern. We conducted a field survey of seven ponds in Teton County, Wyoming for trematode prevalence and richness. We collected snails from each location and determined trematode prevalence by shedding snails and determined trematode richness by dissection of infected snails. At each l...
BACKGROUND Trematodes are a diverse group of endoparasites which require molluscan and vertebrate animals as intermediate and definitive hosts in their life cycle. The present study was carried out to determine the diversity and geographic distribution of infection with trematodes'cercariae in the snail Lymnaea gedrosiana from north-west Iran. METHODS A total number of 6759 Lymnaeidae snails ...
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