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Showing 1 to 20 of 102 for “"Oncorhynchus mykiss"”.
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Energetic costs of toxicant metabolism in rainbow trout ( Oncorhynchus mykiss)
Aquatic ecosystems are continuously exposed to a variety of environmental toxicants including polychlorinated biphenyls (PCBs). A portion of the energy assimilated by the fish is dedicated to detoxification. This study investigates the changes in energetic demands associated with increased …
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Cholesterol supplementation in plant-based diets for rainbow trout (Oncorhynchus mykiss)
Total replacement of marine oils and proteins with plant proteins and oils in rainbow trout diets reduces growth performance and feed intake. It has been suggested that this is due to the presence of growth factors present in marine products but absent in plant ingredients. One putative factor is …
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The Genetic Architecture of Juvenile Migration in Rainbow Trout (Oncorhynchus mykiss)
… and among species. Rainbow and steelhead trout (Oncorhynchus mykiss), members of the salmonid family of fishes, capture this variation throughout their native range. Some populations and ecotypes will remain resident in freshwater habitats throughout their life history; while others have the …
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Rainbow Trout (Oncorhynchus mykiss) Summer Habitat Use in Lake Spokane, Washington
<p>Construction of dams dramatically alters the hydrology of rivers, influencing a wide variety of water quality characteristics directly impacting fish species. These physical alterations will interact with increasing temperatures, due to climate change, reducing thermal habitat for cold-water …
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Betäubung von Regenbogenforellen (Oncorhynchus mykiss) mit Nelkenöl und BHA – Stressbelastung und Produktqualität
Anesthesia of Rainbow trouts (Oncorhynchus mykiss) with clove oil and BHA – stress and product quality In the questioned experiment three different methods of anesthesia were tested on their influence of product quality and the possibility to minimise stress on the rainbow trouts to be slaughtered. …
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Early pathogenesis of Yersinia ruckeri infections in rainbow trout (Oncorhynchus mykiss, Walbaum)
Yersinia ruckeri is the causative agent of yersiniosis or enteric redmouth disease (ERM) and causes significant losses in salmonid aquaculture worldwide. Although infection with this agent has been reported in other fish species, salmonids and especially rainbow trout are most susceptible to ERM. …
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Treatment of Rainbow Trout <i>(Oncorhynchus mykiss)</i> Raceway Effluent Using Baffled Sedimentation and Artificial Substrates and Characterization of Nutrient Leaching Rates from Settled Rainbow Trout (Oncorhynchus mykiss) Sludge
Treatment of Rainbow Trout (Oncorhynchus mykiss) Raceway Effluent Using Baffled Sedimentation and Artificial Substrates. The treatment performance of a 6 m wide by 67 m long by 0.8 m deep, baffled sedimentation basin receiving rainbow trout <i>(Oncorhynchus mykiss)</i> raceway effluent was …
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A Role for Fenugreek in Altering the Osmoregulatory Capacity in Rainbow Trout (Oncorhynchus Mykiss)
… To test this, rainbow trout (Onchorhynchus mykiss) were fed doses of fenugreek, and endpoints of ionoregulatory ability were assessed. A single dose was used in a hypoosmotic stress experiment. Fenugreek did not disrupt systemic endpoints of salt-and-water balance. Transcript abundance of …
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The anti-estrogenic and liver metabolic effects of DHAA in rainbow trout (oncorhynchus mykiss)
… experiment using immature rainbow trout (Oncorhynchus mykiss) was conducted in order to assess the endocrine disrupting and liver metabolic effects of the wood extractives DHAA and β- sitosterol (BS) regularly present in pulp and paper mills and the model estrogen 17β-estradiol (E2). It …
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Effects of ibuprofen on Rainbow Trout (Oncorhynchus mykiss) following acute and chronic waterborne exposures
… chronic effects of ibuprofen on rainbow trout (Oncorhynchus mykiss). Cyclooxygenase (COX) activity, vitellogenin (VTG) concentration and ethoxyresorufin-O-deethylase (EROD) activity were evaluated following waterborne ibuprofen exposure of trout to 1 and 10 mg/L in the acute exposure and 1, 32 …
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Do freshwater growth opportunities and migration barriers limit recovery of imperiled anadromous Oncorhynchus mykiss populations?
Steelhead (Oncorhynchus mykiss) populations in the Puget Sound Distinct Population Segment are far below their historic abundance and are currently listed as Threatened under the Endangered Species Act. Despite the declines in steelhead abundance, resident O. mykiss populations appear to be …
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Contribution of Natural Recruitment to the Rainbow Trout Oncorhynchus mykiss Sport Fishery in Deerfield Reservoir
… non-existent. Recently, juvenile rainbow trout Oncorhynchus mykiss of unknown origin were collected in the Castle Creek tributary system above Deerfield Reservoir, indicating that natural reproduction is occurring. The purpose of this project was to evaluate the extent to which natural …
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Interactive effects of selenium on arsenic and cadmium induced toxicity in rainbow trout (Oncorhynchus mykiss)
… using a model freshwater fish, rainbow trout (Oncorhynchus mykiss). Interactions at the cellular level were investigated using trout hepatocytes in primary culture. Selenite and selenomethionine were used as the inorganic and organic chemical forms of selenium to understand the chemical …
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Aspects of the respiratory metabolism of juvenile rainbow trout (Oncorhynchus mykiss) at sustained swimming speeds
… speeds is presented. Juvenile rainbow trout (Oncorhynchus mykiss) were used to evaluate the performance of the apparatus. Twenty-four hour experiments indicated no detectable diurnal variation in the respiration rates of juvenile rainbow trout. Experiments investigating aerobic energy …
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Investigation of selected variables from the primary and secondary circulatory systems in rainbow trout (Oncorhynchus mykiss)
… the secondary system in rainbow trout (Oncorhynchus mykiss) is described. A T-shaped catheter was placed inside the lateral cutaneous vessel, thereby allowing multiple samples to be taken from the same animal. Rainbow trout were cannulated in both the primary and secondary circulatory …
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Growth, carcass composition, and plasma growth hormone levels in cyclically fed rainbow trout, Oncorhynchus mykiss microform
… restriction, is investigated in rainbow trout (Oncorhynchus mykiss). Underyearling rainbow trout were individually identified using coded tags and placed on either a cyclic feeding regime of 3 weeks of starvation followed by 3 weeks of refeeding (to elicit a G.C.R.) or a daily feeding regime. …
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Characterizing blood plasma proteins from organ tissue in rainbow trout (Oncorhynchus mykiss) using a non-targeted proteomics approach
Protein expression patterns adapt to various cues to meet the needs of an organism. The dynamicity of an organism’s proteome can therefore reveal information about an organism’s health. Proteome databases contain limited information regarding organisms outside of medicinal biology. The Uniprot …
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Use of bioelectrical impedance analysis (BIA) to predict water and energy content of juvenile Rainbow Trout (Oncorhynchus mykiss)
… the bioenergetics of juvenile rainbow trout (Oncorhynchus mykiss), and to develop species-specific indices to predict energy content, total body water and dry mass. To do this, juvenile rainbow trout were subjected to one of three ration regimes: maintenance (0.4 % bw/day), optimum (1.9 % …
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