A5036260884- Aquaculture disease management and microbiota
- Aquaculture Nutrition and Growth
- Myxozoan Parasites in Aquatic Species
- Invertebrate Immune Response Mechanisms
- Microbial infections and disease research
- Vibrio bacteria research studies
- Parasite Biology and Host Interactions
- Identification and Quantification in Food
- Fish Biology and Ecology Studies
- Animal Virus Infections Studies
- Aquatic Invertebrate Ecology and Behavior
- Biosensors and Analytical Detection
- Marine Ecology and Invasive Species
- Aquatic life and conservation
- Veterinary Orthopedics and Neurology
- Mycobacterium research and diagnosis
- Veterinary Oncology Research
- Cell Adhesion Molecules Research
- Bacteriophages and microbial interactions
- Reproductive biology and impacts on aquatic species
- Yersinia bacterium, plague, ectoparasites research
- Viral Infections and Vectors
- CRISPR and Genetic Engineering
- Leptospirosis research and findings
- Plant Pathogenic Bacteria Studies
University of Udine
2015-2024
Tilapines are important for the sustainability of ecological systems and serve as second most group farmed fish worldwide. Significant mortality wild cultured tilapia has been observed recently in Israel. The etiological agent this disease, a novel RNA virus, is described here, procedures allowing its isolation detection revealed. denominated lake virus (TiLV), was propagated primary brain cells or an E-11 cell line, it induced cytopathic effect at 5 to 10 days postinfection. Electron...
Over the years, aquaculture has shown increasing development in terms of production. However, due to intensive farming practices, infectious diseases represent main problem fish farms, causing heavy economic losses. The use antibiotics for controlling is widely criticized its negative impact, including selection antibiotic-resistant bacterial strains, immunosuppression, environmental pollution and accumulation chemical residues tissues. On other hand, though vaccination most effective...
The research was aimed to assess the effect of dietary carvacrol (0.025% and 0.05%) on sea bass (Dicentrarchus labrax) growth, immune response resistance Listonella anguillarum. Fish (69.2 ± 0.22 g) were fed experimental diets for 9 weeks. Dietary did not negatively affect fish survival, growth performance, feed intake conversion ratio (P > 0.05) nor carcass yield viscerosomatic, hepatosomatic mesenteric fat index 0.05). Serum head kidney leucocytes collected after 1, 4 8 weeks feeding....
Lactococcosis, caused by the Gram-positive bacterium Lactococcus garvieae, is a major concern in rainbow trout (Oncorhynchus mykiss) farms, which are regularly affected outbreaks especially during summer/fall months. In these unvaccinated healthy and symptomatic fish can coexist with vaccinated fish. present study, innate (leukogram, serum lysozyme activity, peroxidase antiprotease bactericidal total IgM proteins), specific immune parameters (serum antibodies to L. garvieae) were assessed...
Italian rainbow trout (Oncorhynchus mykiss) farms are periodically affected by outbreaks of lactococcosis caused Lactococcus garvieae, and rearing basins reveal simultaneously asymptomatic symptomatic fish. The present study, as part an "in field" sanitary survey, was designed to describe the expression immune related genes in infected versus healthy fish, well explore a Near Infrared Spectroscopy (NIR) novel approach discriminate between them. Measurements/sampling were performed farm...
Abstract Farmed and wild salmonids are affected by a variety of skin conditions, some which have significant economic welfare implications. In many cases, the causes not well understood, one example is cold water strawberry disease rainbow trout, also called red mark syndrome, has been recorded in UK since 2003. To date, there no internationally agreed methods for describing these caused confusion farmers health professionals, who often unclear as to whether they dealing with new or...
The generic term "Gill disease" refers to a wide range of disorders that affect the gills and severely impact salmonid aquaculture systems worldwide. In rainbow trout freshwater aquaculture, various etiological agents causing gill diseases have been described, particularly Flavobacterium Amoeba species, but research studies suggest more complex multifactorial aetiology. Here, cohort affected by disease is monitored both through standard laboratory techniques 16S rRNA Next-Generation...
A computational model equipped with the main immunological features of sea bass (Dicentrarchus labrax L.) immune system was used to predict more effective vaccination in fish. The performance evaluated by using results two vivo vaccinations trials against L. anguillarum and P. damselae.Tests were performed select appropriate doses vaccine infectious bacteria set up model. Simulation outputs compared specific antibody production expression BcR TcR gene transcripts spleen. has shown a good...
Amyloodiniosis is a disease resulting from infestation by the ectoparasitic dinoflagellate Amyloodinium ocellatum (AO) and threat for fish species such as European sea bass (ESB, Dicentrarchus labrax), which are farmed in lagoon land-based rearing sites. During summer, when temperatures highest, mortality rates can reach 100%, with serious impacts aquaculture industry. As no effective licensed therapies currently exist, this study was undertaken to improve knowledge of biology AO...
Lactococcosis caused by Lactococcus garvieae has emerged as one of the most devastating bacterial disease affecting rainbow trout (Oncorhynchus mykiss) worldwide. Understanding immune response to this streptococcal pathogen is crucial for diagnosing and managing associated developing vaccines preventive measures, such selection naturally resistant stocks. Over past few decades, a significant number studies have focused on several aspects lactococcosis, including pathological features,...
Abstract Bacterial cells of the marine fish pathogen Photobacterium damsela subsp. piscicida were grown in novel culture media. A mixture whole and extracellular components was inactivated used bath, intraperitoneal (i.p.) oral vaccination sea bass, Dicentrarchus labrax , employing two sizes fish. commercial vaccine for comparative purposes. Control immunized either bath or intraperitoneally challenged 6 12 weeks post‐vaccination. Small had significantly higher relative percentage survival...
Red mark syndrome (RMS) is a widespread skin disorder of rainbow trout in freshwater aquaculture, believed to be caused by Midichloria-like organism (MLO). Here, we aimed study the pathologic mechanisms at origin RMS analyzing field samples from recent outbreak through gene expression, MLO PCR, quantitative and histopathological scoring system proposed for lesions. Statistical analyses included One-Way Analysis Variance (ANOVA) with Dunnett's multiple comparisons test assess differences...
Photobacterium damsela ssp. piscicida (Phdp) isolates were grown in various bacteriological media, eukaryotic cell culture media and the presence of fish cells (resembling some aspects vivo growth environments). Bacterial cells, extracellular products (ECPs) crude capsular polysaccharide isolated analysed by electrophoresis Western blot using sea bass sera. Growth conserved synthesis components when these compared with those prepared under near-in conditions. In fact, a larger range was...
Red mark syndrome (RMS) and US strawberry disease (US SD) are skin disorders affecting rainbow trout farmed in Europe USA. The etiology has not yet been established. In spite of specific investigations, identifying Rickettsia-like organism (RLO)- Midichloria-like (MLO)-related DNA affected individuals, these pathogens have never observed. We performed histological, ultrastructural biomolecular analysis on spleen samples with RMS. Examination by TEM revealed the presence intracytoplasmic...