نتایج جستجو برای: snails

تعداد نتایج: 3826  

Journal: :iranian journal of public health 0
f.arfaa g.h.sahba j.massoud

studies undertaken on the susceptibility of various local snails to some of the important human and animal trematodes found in iran have revealed that bulinus truncatus, the distribution of which is restricted to the province of khuzestan in the southwest of iran is the intermediate host of shistosoma haematobium, s. bovis and paramaphistomum microbothrium in this area.this snail is also suscep...

Journal: :Veterinary parasitology 2000
N Pusterla E Johnson J Chae J B Pusterla E DeRock J E Madigan

Juga yrekaensis freshwater snails were tested for trematode stages and for Ehrlichia risticii DNA using a nested PCR assay. Snails were collected monthly from two Potomac horse fever (PHF) endemic locations in northern California (Montague and Weed). The trematode infection rate varied between 40 and 93.3% in large snails (shell size >15mm) and between 0 and 13.3% in small snails (<15mm). The h...

A. Khan K.M. Islam, M. Rahman M.D. Islam M.K. Hossain S. Sarkar S.M.A. Rauf

The present study was conducted to investigate the prevalence of developmental stages of Fasciola gigantica infection in Lymnaea snails and their populations in Sylhet region of Bangladesh. A total of 1865 Lymnaea snails were collected and examined, of which 56 (3%) were found to having infected with developmental stages of Fasciola gigantica. Only 4.08% infected of 515 snails were collected fr...

Background and Objective: Some freshwater snails are intermediate hosts of human and animal parasitic flukes. These snails are considered as the first and often the second intermediate hosts of parasitic trematode larvae. Therefore, survey of the important epidemiologic indexes related to snails fauna makes it possible to gain information about the sources of infection. The aim of curren...

ژورنال: Hormozgan Medical Journal 2009
Hosseini Chagini , A, Salahi Moghaddam , A.R,

Introduction: Melanoids was previously found in Hormozgan province. In Khuzestan province up to 2.9% of these snails were infected to cercaria of trematodes but there was not any report about its parasitologic aspects in Hormozgan province. This study was performed to find ecological and paeasitological aspects of Melanoides tuberculata in Hormozgan province south of Iran. Methods: In this de...

Journal: :archives of razi institute 2016
n. motamedi r. salehi tabar a.h. dalimi h. paykari s.a. ghorashi

trematodes are important in economic and public health. ornithobilharzia turkestanicum (o. turkestanicum) is one of the important economic trematodes in domestic animals. ornithobilharzia infection in intermediate host (lymnaea gedrosiana ) can be detected by either exposing snails to light to induce cercarial shedding or by squeezing them between glass slides to detect parasites. the current a...

Journal: :Environmental toxicology and chemistry 2007
Paulina E Kramarz Annette de Vaufleury Piotr M S Zygmunt Cyrille Verdun

To determine the effect of nematode infection on the response of snails to selected toxins, we infected Helix aspersa with 0-, 0.25-, 1-, or 4-fold the recommended field dose of a commercial nematode application for agricultural use. In the first experiment, the snails also were exposed to cadmium via food and soil at concentrations of 0, 30, 60, 120, or 240 mg/kg in a full-factorial design. In...

2016
Navneet Kumar D. K. Singh Vinay Kumar Singh

Fasciolosis is a waterborne disease, caused by Fasciola species. Snail Lymnaea acuminata is an intermediate host of these flukes. Control of snail population is major tool in reducing the incidences. Variation in light intensity and wavelength caused significant changes in reproduction pattern of snails. Maximum fecundity was noted with bait containing carbohydrate (starch, 468 ± 0.10/20 snails...

2016
Amy Roda Gösta Nachman Scott Weihman Mary Yong Cong Fredrick Zimmerman

Giant African snail (Achatina fulica (Bowdich, 1822)), an important invasive snail, was recently found in South Florida, USA. An extensive eradication effort was initiated consisting of pesticide applications, debris removal and hand collections. We studied the reproduction capacity and population dynamics of snails collected from 22 populations for two years to help evaluate the likely success...

Introduction: Some snails play an important role in the transmission of helminthes, mainly trematodes of medical and veterinary importance. There seems to be no information on the freshwater snails of Gahar Lake in Lorestan province of Iran. The present study aimed to identify medically important snails of this lake. Methods: Samples were collected from ten localities around Gahar Lake in April...

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