Cells isolated from rainbow trout fins Oncorhynchus mykiss, Walbaum were propagated and subcultured a s fibroblast-like. Viral haemorrhagic septicaemia virus (VHSV) replicated in the cultured fin cells as demonstrated by fin cell lysis, posihve immunofluorescence with polyclonal antiVHSV, and Increase in titre as measured by either infection of f ~ s h cell lines or by sandwich ELISA with anti-...

Native salmonid fishes—cutthroat trout (Oncorhynchus clarkii) and steelhead/rainbow mykiss)—are ecologically, culturally, economically important species distributed across western North America. These fish are generally considered “cold-water” adapted species. As such, recent studies have speculated about the potential effects of climate change on these native salmonids if stream temperature th...

Development rate has important implications for individual fitness and physiology. In salmonid fishes, development rate correlates with many traits later in life, including life-history diversity, growth, and age and size at sexual maturation. In rainbow trout (Oncorhynchus mykiss), a quantitative trait locus for embryonic development rate has been detected on chromosome 5 across populations. H...

Regarding fast development of the nanotechnology and the probably of it's side effects on aquatic body organs, this study investigate the effects of nanosilver administration on histology of gill, kidney and biochemical parameters in common carp. The silver nanoparticles were synthesized in a one-step reduction process in an aqueous solution. 60 O. mykiss were obtained from a local commercial h...

Investigations on the epizoic fauna of Gadus morhua (L.), Platichthys flesus (L.) and Oncorhynchus mykiss (Walbaum) from the Kiel Fjord and Kiel Bight were carried out from September 1996 to March 1997. Smears from 120 G. morhua and 92 P. flesus caught using fish traps and trammel nets, and of 35 O. mykiss obtained from a local fish farm in the Kiel Fjord revealed the presence of three species ...

Deoxynivalenol (DON), produced by the Fusarium genus, is a major contaminant of cereal grains used in the production of fish feed. The effect of mycotoxin deoxynivalenol on rainbow trout (Oncorhynchus mykiss) was studied using a commercial feed with the addition of DON in a dose of 2 mg/kg feed. The fish (n=40) were exposed to the mycotoxin for 23 days. The trout were divided into two groups, c...

In a 10-week (May – August, 2008) Phase I trial, 840, 1+ rainbow trout, Oncorhynchus mykiss, received a commercial oral immunomodulator, Fin ImmuneTM, at four different dosages (0, 10, 20 and 30 mg g-1) to evaluate immune response and growth. The overall objective of was to determine an optimal dosage of this product for rainbow trout that provides enhanced immunity with maximal growth and heal...

We describe 12 diagnostic single nucleotide polymorphism (SNP) assays for use in species identification among rainbow and cutthroat trout: five of these loci have alleles unique to rainbow trout (Oncorhynchus mykiss), three unique to westslope cutthroat trout (O. clarkii lewisi) and four unique to Yellowstone cutthroat trout (O. clarkii bouvieri). These diagnostic assays were identified using a...

In this study the morphology, conventional glycohistochemistry and ultrastructure of adult rainbow trout (Oncorhynchus mykiss) stomach is reported. For purpose, belonging to 10 female trout, weighting ~ 500 ± 20 gr 32 2.50 cm long, were collected processed. Oncorhynchus mykiss has a siphonal stomach, with J letter shape, showing descending portion (cardiac region), an ascendant one (pyloric con...