In eastern Asia and western North America at least nine morphologically distinguishable species of digenean trematode infect the mud snail, Batillaria attramentaria (Sowerby 1855) (=B. cumingi (Crosse 1862)), as first intermediate host. Further, molecular and morphological evidence indicates that several of these trematode species comprise complexes of cryptic species. I present an identificati...

Abstract Stachytarpheta jamaicensis L. Vahl has traditionally been used as an anti-trematode, but its effectiveness needs to be scientifically tested. This study aimed determine the anti-trematode activity of leaf extract in vitro. The leaves were extracted using water, and their secondary metabolites characterized by phytochemical screening. Paramphistomum sp isolated from rumen was identified...

the present study was carried out to determine parasitic infection of sheep with gastrointestinal helminthes in a slaughterhouse in fereidoonkenar city, iran. a total number of 50 sheep were examined from april to september 2008. nematodes were removed from abomasums, small and large intestines, and kept in a.f.a. solution (alcohol, formaldeyde, acetic acid, distilled water, and glycerine) for ...

Parasite life-history traits should reflect past environmental and host-related selective pressures acting to produce strategies that maximize transmission success. The evolution of adult body size and egg production in 804 species of trematode parasites was investigated using independent contrasts derived from a phylogeny of trematodes. Contrasts in trematode body size were positively correlat...

Parasites are integral members of natural communities, but large-scale determinants of their abundance and diversity, including the importance of biotic and abiotic factors, both natural and anthropogenic, are often not well understood. Here, we examine which factors best predict larval trematode communities in the mudsnail host Ilyanassa obsoleta across a regional landscape. At 15 salt marsh s...

Schistosomiasis, a neglected tropical disease, owes its continued success to freshwater snails that support production of prolific numbers of human-infective cercariae. Encounters between schistosomes and snails do not always result in the snail becoming infected, in part because snails can mount immune responses that prevent schistosome development. Fibrinogen-related protein 3 (FREP3) has bee...

Parasite infections often lead to dramatically different outcomes among host species. Although an emerging body of ecoimmunological research proposes that hosts experience a fundamental trade-off between pathogen defences and life-history activities, this line of inquiry has rarely been extended to the most essential outcomes of host-pathogen interactions: namely, infection and disease patholog...

Eurytrema spp. is a trematode worm that generally attacks the pancreas of livestock and humans which can cause chronic interstitial pancreatitis, weight loss leads to decreased productivity ends in death. The purpose this study identify parasitic also find out prevalence rate Brahman Cross cattle slaughtered Banda Aceh slaughterhouse. This used sample 20 pieces from worms were collected by taki...