The population of brown trout () in continental Europe is on the decline, with infectious diseases confirmed as one of the causative factors. However, no data on the epizootiological situation of wild fish in the Czech Republic are currently available. In this study, brown trout (n = 260) from eight rivers were examined for the presence of viral and parasitical pathogens. , infectious pancreatic necrosis virus, (VHSV) and (IHNV) were not detected using PCR. Cell culturing showed no viruses as well, and serological analysis of 110 sera did not detect any specific antibodies against VHSV or IHNV. Fish from two rivers were positive for the presence of (PRV-3), subtype PRV-3b. However, none of the PRV-3-positive fish showed gross pathologies typically associated with PRV infections. By far the most widespread pathogen was which was confirmed in each of the examined locations, with a prevalence of up to 65% and 100%, as established by immunohistochemistry and PCR, respectively. Furthermore, up to 43.8% of fish showed signs of proliferative kidney disease caused by , suggesting that this parasite is a main health challenge for brown trout in the Czech Republic.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7460431 | PMC |
| http://dx.doi.org/10.3390/pathogens9080604 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Prolonging Shelf Life and Meat Quality of Rainbow Trout () by Immersing in Pine Nut () Extract During Cold Storage.
Food Sci Nutr
January 2025
Caspian Sea Ecology Research Center Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization Mazandaran Iran.
Rainbow trout () is a freshwater fish susceptible to chemical and microbial spoilage, limiting its shelf life. This study aimed to enhance and extend the rainbow trout fillets' shelf life stored at 4°C ± 1°C through an immersion treatment using ultrasound-assisted, defatted pine nut ( Wallich) extracts at concentrations of 1% and 2% (w/v), compared to the control group (0% pine nut). Evaluations were conducted at storage intervals of 0, 4, 8, 12, 16, and 20 days.
View Article and Find Full Text PDFN-methyladenosine RNA methylation regulates microplastics-induced cell senescence in the rainbow trout liver.
Sci Total Environ
January 2025
School of Bioengineering and Technology, Tianshui Normal University, Gansu Province, PR China. Electronic address:
Microplastics are prevalent in aquatic ecosystems, impacting various forms of aquatic life, including fish. In this study, Rainbow trout (Oncorhynchus mykiss) were exposed to two concentrations of microplastics (0 and 500 μg/L) over a 14-day period, during which a comprehensive analysis was conducted to assess the liver accumulation of microplastics and their effects on oxidative stress, the liver response, and transcriptomics. Our findings indicated that microplastics significantly accumulated in the liver and activated the antioxidant system in fish by enhancing the activity of antioxidant enzymes.
View Article and Find Full Text PDFMethylation of foreign DNA overcomes the restriction barrier of and allows efficient genetic manipulation.
Appl Environ Microbiol
January 2025
Department of Biological Sciences, Minnesota State University Mankato, Mankato, Minnesota, USA.
Unlabelled: causes bacterial cold-water disease (BCWD) in salmonids and other fish, resulting in substantial economic losses in aquaculture worldwide. The mechanisms uses to cause disease are poorly understood. Despite considerable effort, most strains of have resisted attempts at genetic manipulation.
View Article and Find Full Text PDFNew Insights in Microplastic Cellular Uptake Through a Cell-Based Organotypic Rainbow-Trout () Intestinal Platform.
Cells
January 2025
Department of Agricultural and Environmental Sciences, University of Milan, 20133 Milan, Italy.
Microplastics (MPs) in fish can cross the intestinal barrier and are often bioaccumulated in several tissues, causing adverse effects. While the impacts of MPs on fish are well documented, the mechanisms of their cellular internalization remain unclear. A rainbow-trout () intestinal platform, comprising proximal and distal intestinal epithelial cells cultured on an Alvetex scaffold, was exposed to 50 mg/L of MPs (size 1-5 µm) for 2, 4, and 6 h.
View Article and Find Full Text PDFUsing cationic liposomes as carriers for long dsRNA to trigger an antiviral response in rainbow trout cell lines.
In Vitro Cell Dev Biol Anim
January 2025
Department of Biology, Wilfrid Laurier University, 75 University Avenue West, Waterloo, ON, N2L 3C5, Canada.
Long dsRNA induces the expression of type I interferons (IFNs) and IFN-stimulated genes (ISGs) to establish an antiviral state. When induced prophylactically, this antiviral state can reduce the severity and mortality of viral infections. One of the limiting factors in delivering dsRNA in animal models is the lack of an effective carrier that protects the dsRNA from degradation in the extracellular space.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!