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https://www.readbyqxmd.com/read/28225652/dna-vaccination-partially-protects-muskellunge-against-viral-hemorrhagic-septicemia-virus-vhsv-ivb
#1
Elena V Millard, Ashley M Bourke, Scott E LaPatra, Travis O Brenden, Scott D Fitzgerald, Mohamed Faisal
A DNA vaccine containing the glycoprotein (G) gene of the North American viral hemorrhagic septicemia virus (VHSV) genotype IVb was developed to evaluate the immune response of fish following vaccination and evaluate its efficacy in protecting a susceptible species, the Muskellunge Esox masquinongy, against VHSV-IVb challenge. Seven weeks (539 degree-days) following vaccination with 10 μg of either pVHSivb-G or a control plasmid, Muskellunge were challenged by immersion with 10(5) plaque-forming units (pfu)/mL of VHSV-IVb...
March 2017: Journal of Aquatic Animal Health
https://www.readbyqxmd.com/read/28221983/biogenic-amines-and-predictive-models-of-quality-of-rainbow-trout-oncorhynchus-mykiss-fillets-during-storage
#2
Qingzheng Li, Jian Lv, Longteng Zhang, Zehong Dong, Ligeng Feng, Yongkang Luo
To estimate biogenic amines and changes in quality of rainbow trout ( Oncorhynchus mykiss ) fillets at different temperatures, we determined the sensory attributes, total volatile basic nitrogen (TVB-N), total viable counts (TVC), and biogenic amines (BAs) of samples that were untreated (CK) or dry cured with 1.8% salt (T). There was no significant difference between CK and T samples in terms of TVB-N, TVC, and BAs. TVB-N and TVC increased significantly (P < 0.05) with storage time at 3, 9, and 15°C. Putrescine (PUT) and cadaverine (CAD) increased significantly (P < 0...
February 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28221859/effects-of-methanolic-pomegranate-peel-extract-on-the-chemical-sensory-textural-and-microbiological-properties-of-gutted-rainbow-trout-oncorhynchus-mykiss-during-frozen-storage
#3
Enayat Berizi, Seyed Shahram Shekarforoush, Saeid Hosseinzadeh
The effects of methanolic pomegranate peel extract (MPPE) on the quality of gutted rainbow trout ( Oncorhynchus mykiss ) were examined periodically during 6 months of storage at -18°C. Fresh samples were dipped (ratio of fish to liquid, 1:2 [wt/vol]) in sterile water or in sterile water containing 1, 2, or 4% (wt/vol) MPPE and packed in low-density polyethylene pouches. The control and treated samples were analyzed monthly for microbiological, chemical, sensory, and textural characteristics. Microbial growth in samples was significantly reduced by MPPE treatment (P < 0...
October 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28219821/neurotoxic-responses-in-brain-tissues-of-rainbow-trout-exposed-to-imidacloprid-pesticide-assessment-of-8-hydroxy-2-deoxyguanosine-activity-oxidative-stress-and-acetylcholinesterase-activity
#4
Ahmet Topal, Gonca Alak, Mustafa Ozkaraca, Aslı Cilingir Yeltekin, Selim Comaklı, Gurdal Acıl, Mine Kokturk, Muhammed Atamanalp
The extensive use of imidacloprid, a neonicotinoid insecticide, causes undesirable toxicity in non-targeted organisms including fish in aquatic environments. We investigated neurotoxic responses by observing 8-hydroxy-2-deoxyguanosine (8-OHdG) activity, oxidative stress and acetylcholinesterase (AChE) activity in rainbow trout brain tissue after 21 days of imidacloprid exposure at levels of (5 mg/L, 10 mg/L, 20 mg/L). The obtained results indicated that 8-OHdG activity did not change in fish exposed to 5 mg/L of imidacloprid, but 10 mg/L and 20 mg/L of imidacloprid significantly increased 8-OHdG activity compared to the control (p < 0...
February 11, 2017: Chemosphere
https://www.readbyqxmd.com/read/28219347/aquaculture-genomics-genetics-and-breeding-in-the-united-states-current-status-challenges-and-priorities-for-future-research
#5
EDITORIAL
Hisham Abdelrahman, Mohamed ElHady, Acacia Alcivar-Warren, Standish Allen, Rafet Al-Tobasei, Lisui Bao, Ben Beck, Harvey Blackburn, Brian Bosworth, John Buchanan, Jesse Chappell, William Daniels, Sheng Dong, Rex Dunham, Evan Durland, Ahmed Elaswad, Marta Gomez-Chiarri, Kamal Gosh, Ximing Guo, Perry Hackett, Terry Hanson, Dennis Hedgecock, Tiffany Howard, Leigh Holland, Molly Jackson, Yulin Jin, Karim Kahlil, Thomas Kocher, Tim Leeds, Ning Li, Lauren Lindsey, Shikai Liu, Zhanjiang Liu, Kyle Martin, Romi Novriadi, Ramjie Odin, Yniv Palti, Eric Peatman, Dina Proestou, Guyu Qin, Benjamin Reading, Caird Rexroad, Steven Roberts, Mohamed Salem, Andrew Severin, Huitong Shi, Craig Shoemaker, Sheila Stiles, Suxu Tan, Kathy F J Tang, Wilawan Thongda, Terrence Tiersch, Joseph Tomasso, Wendy Tri Prabowo, Roger Vallejo, Hein van der Steen, Khoi Vo, Geoff Waldbieser, Hanping Wang, Xiaozhu Wang, Jianhai Xiang, Yujia Yang, Roger Yant, Zihao Yuan, Qifan Zeng, Tao Zhou
Advancing the production efficiency and profitability of aquaculture is dependent upon the ability to utilize a diverse array of genetic resources. The ultimate goals of aquaculture genomics, genetics and breeding research are to enhance aquaculture production efficiency, sustainability, product quality, and profitability in support of the commercial sector and for the benefit of consumers. In order to achieve these goals, it is important to understand the genomic structure and organization of aquaculture species, and their genomic and phenomic variations, as well as the genetic basis of traits and their interrelationships...
February 20, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28216558/application-of-passive-sampling-to-characterise-the-fish-exometabolome
#6
Mark R Viant, Jessica Elphinstone Davis, Cathleen Duffy, Jasper Engel, Craig Stenton, Marion Sebire, Ioanna Katsiadaki
The endogenous metabolites excreted by organisms into their surrounding environment, termed the exometabolome, are important for many processes including chemical communication. In fish biology, such metabolites are also known to be informative markers of physiological status. While metabolomics is increasingly used to investigate the endogenous biochemistry of organisms, no non-targeted studies of the metabolic complexity of fish exometabolomes have been reported to date. In environmental chemistry, Chemcatcher(®) (Portsmouth, UK) passive samplers have been developed to sample for micro-pollutants in water...
February 14, 2017: Metabolites
https://www.readbyqxmd.com/read/28216010/uptake-of-benzo-a-pyrene-but-not-of-phenanthrene-is-inhibited-by-fatty-acids-in-intestinal-brush-border-membrane-vesicles-of-rainbow-trout-oncorhynchus-mykiss
#7
Stefan de Gelder, Liselot van Och, Jan Zethof, Thamar N M Pelgrim, Josef D Rasinger, Gert Flik, Marc H G Berntssen, Peter H M Klaren
Partial replacement of fish ingredients with vegetable ingredients has elevated levels of polycyclic aromatic hydrocarbons (PAHs) in Atlantic salmon reared on these feeds. PAH uptake in the intestinal tract is postulated to occur in association with lipid absorption and could well be affected by fatty acid composition. We therefore investigated the effects of a fish oil and vegetable oil fatty acid, eicosapentaenoic acid (EPA; 20:5n-3) and oleic acid (18:1n-9) respectively, on the uptake of benzo[a]pyrene (BaP) and phenanthrene (PHE) across the intestinal brush border membrane in the salmonid species rainbow trout (Oncorhynchus mykiss)...
February 12, 2017: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/28212382/de-novo-assembly-of-the-sea-trout-salmo-trutta-m-trutta-skin-transcriptome-to-identify-putative-genes-involved-in-the-immune-response-and-epidermal-mucus-secretion
#8
Magdalena Malachowicz, Roman Wenne, Artur Burzynski
In fish, the skin is a multifunctional organ and the first barrier against pathogens. Salmonids differ in their susceptibility to microorganisms due to varied skin morphology and gene expression patterns. The brown trout is a salmonid species with important commercial and ecological value in Europe. However, there is a lack of knowledge regarding the genes involved in the immune response and mucus secretion in the skin of this fish. Thus, we characterized the skin transcriptome of anadromous brown trout using next-generation sequencing (NGS)...
2017: PloS One
https://www.readbyqxmd.com/read/28212052/proton-density-fat-fraction-measurements-at-1-5-and-3-t-hepatic-mr-imaging-same-day-agreement-among-readers-and-across-two-imager-manufacturers
#9
Suraj D Serai, Jonathan R Dillman, Andrew T Trout
Purpose To determine the agreement of proton density fat fraction (PDFF) measurements obtained with hepatic magnetic resonance (MR) imaging among readers, imager manufacturers, and field strengths. Materials and Methods This HIPAA-compliant study was approved by the institutional review board. After providing informed consent, 24 adult volunteers underwent imaging with one 1.5-T MR unit (Ingenia; Philips Healthcare, Best, the Netherlands) and two different 3.0-T units (750 W [GE Healthcare, Waukesha, Wis] and Ingenia) on the same day to estimate hepatic PDFF...
February 24, 2017: Radiology
https://www.readbyqxmd.com/read/28209806/short-term-and-long-term-effects-of-transient-exogenous-cortisol-manipulation-on-oxidative-stress-in-juvenile-brown-trout
#10
Kim Birnie-Gauvin, Kathryn S Peiman, Martin H Larsen, Kim Aarestrup, William G Willmore, Steven J Cooke
In the wild, animals are exposed to a growing number of stressors with increasing frequency and intensity, as a result of human activities and human-induced environmental change. To fully understand how wild organisms are affected by stressors, it is crucial to understand the physiology that underlies an organism's response to a stressor. Prolonged levels of elevated glucocorticoids are associated with a state of chronic stress and decreased fitness. Exogenous glucocorticoid manipulation reduces an individual's ability to forage, avoid predators and grow, thereby limiting the resources available for physiological functions like the defence against oxidative stress...
February 16, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28209550/pathogenicity-of-mexican-isolates-of-aeromonas-sp-in-immersion-experimentally-infected-rainbow-trout-oncorhynchus-mykiss-walbaum-1792
#11
Andrea Paloma Zepeda-Velázquez, Vicente Vega-Sánchez, César Ortega-Santana, Miguel Rubio-Godoy, Dany Montes de Oca-Mira, Edgardo Soriano-Vargas
Ten species of Aeromonas have been previously identified in farmed rainbow trout from Mexico. The aim of the current study was to investigate the pathogenicity of 10 Aeromonas isolates belonging to 10 different Aeromonas species in immersion experimentally-infected rainbow trout fry. Isolates of A. bestiarum, A. hydrophila, A. salmonicida, and A. veronii produced significant mortality (8.8%, 12.2%, 18.8%, and 8.8%, respectively). Isolates of A. caviae and A. sobria produced no significantly mortality (3.3% and 1...
February 13, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28202582/dynamic-changes-in-cardiac-mitochondrial-metabolism-during-warm-acclimation-in-rainbow-trout
#12
Nicolas Pichaud, Andreas Ekström, Kim Hellgren, Erik Sandblom
Although the mitochondrial metabolism responses to warm acclimation have been widely studied in fish, the time course of this process is less understood. Here, we characterise changes of rainbow trout (Oncorhyncus mykiss) cardiac mitochondrial metabolism during acute warming from 10 to 16°C, and during the subsequent warm acclimation for 39 days (D). We repeatedly measured mitochondrial O2 consumption in cardiac permeabilized fibers and functional integrity of mitochondria (i.e. mitochondrial coupling and cytochrome c effect) at two assay temperatures (10 and 16°C), as well as citrate synthase (CS) and lactate dehydrogenase (LDH) activities at room temperature...
February 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28199699/detection-of-the-florfenicol-resistance-gene-flor-in-chryseobacterium-isolates-from-rainbow-trout-exception-to-the-general-rule
#13
David W Verner-Jeffreys, Thomas Brazier, Ramon Y Perez, David Ryder, Roderick M Card, Timothy J Welch, Rowena Hoare, Thao Ngo, Nikki McLaren, Richard Ellis, Kerry L Bartie, Stephen W Feist, William M P Rowe, Alexandra Adams, Kim D Thompson
No abstract text is available yet for this article.
February 11, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28199459/crusted-papules-and-pustules-on-the-leg-after-a-trout-fishing-trip
#14
Kathleen M Nemer, George Denny, Caroline M Mann
No abstract text is available yet for this article.
February 15, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28199322/keas-perform-similarly-to-chimpanzees-and-elephants-when-solving-collaborative-tasks
#15
Megan Heaney, Russell D Gray, Alex H Taylor
Cooperation between individuals is one of the defining features of our species. While other animals, such as chimpanzees, elephants, coral trout and rooks also exhibit cooperative behaviours, it is not clear if they think about cooperation in the same way as humans do. In this study we presented the kea, a parrot endemic to New Zealand, with a series of tasks designed to assess cooperative cognition. We found that keas were capable of working together, even when they had to wait for their partner for up to 65 seconds...
2017: PloS One
https://www.readbyqxmd.com/read/28189076/depression-social-support-and-long-term-risk-for-coronary-heart-disease-in-a-13-year-longitudinal-epidemiological-study
#16
Richard T Liu, Evelyn M Hernandez, Zoë M Trout, Evan M Kleiman, Melanie L Bozzay
Depression has been linked with long-term risk for a variety of physical health ailments, including coronary heart disease (CHD). Little is known about resilience factors that may attenuate this relationship. The current study assessed whether social support moderates the long-term risk for CHD associated with this disorder. Data were drawn from the Americans' Changing Lives study, a nationally representative longitudinal survey of adults in the United States. Participants (unweighted n=1636) completed initial assessments of functional social support, body mass index, recent history of major depression, CHD, hypertension, and diabetes...
February 6, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28188658/in-vivo-adherence-of-flavobacterium-psychrophilum-to-mucosal-external-surfaces-of-rainbow-trout-oncorhynchus-mykiss-fry
#17
A Papadopoulou, I Dalsgaard, A Lindén, T Wiklund
The adherence of Flavobacterium psychrophilum to surfaces of epithelial tissues has been inconclusively suggested as a mechanism, which enables the bacterium to invade the host. Hence, the present study aimed to examine the adherence of the cells of two colony phenotypes, smooth and rough, of F. psychrophilum to mucosal tissues of rainbow trout fry and to test the skin mucus as a nutrient for the growth of F. psychrophilum. Fish were immersed in water containing 10(6 ) CFU( ) mL(-1) F. psychrophilum for each colony phenotype...
February 11, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28187310/proteomic-analysis-of-liver-tissue-from-rainbow-trout-oncorhynchus-mykiss-under-high-rearing-density-after-administration-of-dietary-vitamin-e-and-selenium-nanoparticles
#18
Mahdi Naderi, Saeed Keyvanshokooh, Amir Parviz Salati, Alireza Ghaedi
The aim of the present study was to investigate the effects of dietary vitamin E (vit E) and selenium nanoparticles (nanoSe) on liver proteome profile of rainbow trout under high density condition. To correlate the proteome modifications with physiological aspects, growth, serum metabolites (cortisol, glucose, lactate, ALT, AST, and ALP), and liver antioxidant-related parameters (SOD, GPx, CAT, and MDA) were also examined. A total of 1275 fish (average weight of 42.6±2.3g) were stocked into 12 tanks at a density of 80kgm(-3)...
February 4, 2017: Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics
https://www.readbyqxmd.com/read/28183054/national-estimation-of-seafood-consumption-in-mexico-implications-for-exposure-to-methylmercury-and-polyunsaturated-fatty-acids
#19
Alejandra Cantoral, Carolina Batis, Niladri Basu
BACKGROUND: Seafood is a good source of Omega-3 polyunsaturated fatty acids (ω3-PUFA) but also contains the toxic contaminant methylmercury (MeHg). National estimates of exposure to both compounds through seafood intake in Mexico are not known. The objective of the current study was to describe national seafood consumption habits and to estimate seafood-based exposure to ω3-PUFAs and MeHg. METHODS: We analyzed data from a 24-h dietary recall extracted from the 2012 National Health and Nutrition Survey of Mexico (n = 10,096 subjects aged 1y and older)...
January 26, 2017: Chemosphere
https://www.readbyqxmd.com/read/28182704/subunit-vaccine-candidates-against-aeromonas-salmonicida-in-rainbow-trout-oncorhynchus-mykiss
#20
Moonika Haahr Marana, Louise von Gersdorff Jørgensen, Jakob Skov, Jiwan Kumar Chettri, Andreas Holm Mattsson, Inger Dalsgaard, Per Walter Kania, Kurt Buchmann
Aeromonas salmonicida subsp. salmonicida is the etiological agent of furunculosis and a major fish health problem in salmonid aquaculture worldwide. Injection vaccination with commercial mineral oil-adjuvanted bacterin vaccines has been partly successful in preventing the disease but in Danish rainbow trout (Oncorhynchus mykiss, Walbaum) aquaculture furunculosis outbreaks still occur. In this study we tested the efficacy of experimental subunit vaccines against A. salmonicida infection in rainbow trout. We utilized in silico screening of the proteome of A...
2017: PloS One
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