has been considered for a long time the only causal agent of lactococcosis. In recent years, different papers reported the involvement of other two bacterial species: and . A different host tropism has been described for these species where and are predominant species in fish and humans' infections, while in bovine.
View Article and Find Full Text PDFParthenogenesis, or virgin birth, describes a mode of reproduction where an egg develops into an offspring without fertilization, and is observed across various vertebrate taxa, excluding mammals. Obligate parthenogenesis, found in around 100 vertebrate species and 1000 invertebrate species, is relatively rare. Conversely, facultative parthenogenesis, where females can reproduce both sexually and parthenogenetically, is observed in some vertebrates, including elasmobranchs.
View Article and Find Full Text PDFReptiles are usually asymptomatic carriers of , with the manifestation of typical clinical signs of acute forms in adult and non-immunocompromised animals being considered exceptions. In the present case, an adult male corn snake () was found dead due to septic shock 48 h after consuming a feeder mouse purchased online. The snake's tissue samples and faeces were cultured for bacteria isolation.
View Article and Find Full Text PDFis a recently described species of the genus . It was reported as an etiological agent of piscine lactococcosis together with . was already described as an opportunistic pathogen in human infections, with a potential zoonotic role.
View Article and Find Full Text PDFFood supplements are a category of products perceived safe and therefore commonly used by different categories of consumers without any particular attention or precaution. However, health risks associated with the consumption of supplements containing undeclared substances cannot be excluded. A variety of analytical methods are used to control supplement quality composition, but usually, these procedures are complex and time-consuming.
View Article and Find Full Text PDFis the etiological agent of lactococcosis, a clinically and economically significant infectious disease affecting farmed rainbow trout. had been considered the only cause of lactococcosis for a long time; however, , another species of the genus , has lately been linked to the same disease. The genomes and biochemical profiles of and have a high degree of similarity.
View Article and Find Full Text PDFInfectious diseases place an economic burden on aquaculture and a limitation to its growth. An innovative approach to mitigate their impact on production is breeding for disease resistance: selection for domestication, family-based selection, marker-assisted selection, and more recently, genomic selection. Advances in genetics and genomics approaches to the control of infectious diseases are key to increasing aquaculture efficiency, profitability, and sustainability and to reducing its environmental footprint.
View Article and Find Full Text PDFEuropean sea bass ( L.) is one of the most economically important fish species in the Mediterranean Sea area. Despite strict requirements regarding indications of production method (wild/farmed), incorrect labelling of sea bass is a practice still frequently detected.
View Article and Find Full Text PDFThe first case of infection of in Adriatic sturgeon () was recently reported in a raceway system located in Northern Italy. A second episode of infection in sturgeons with absence of mortality and evident clinical signs, was registered in November 2020 in the same farm and is reported in this study. Histopathological changes observed in infected organs are described.
View Article and Find Full Text PDFUnlabelled: Extra virgin olive oil is the highest quality olive oil mainly due to its beneficial constituents and nutritional properties. However, olive oil adulteration is a common fraudulent practice by deliberate mislabelling of less expensive oil categories and admixing expensive olive oils with low oils. To protect consumers from such commercial frauds, an easy and fast method to detect the real composition of oil is needed.
View Article and Find Full Text PDFAbstract: Because the world's wild fish stocks are limited and the market demand is increasing, fish farming has become an alternative food source and a way to reduce costs for consumers. The sale of farmed as wild fish is a fraudulent practice; it is, therefore, important to find new and alternative tools that can help in the fight against fraud to protect consumers and to ensure food traceability. The proteomic profiles of farmed and wild fish differ.
View Article and Find Full Text PDFA simple method based on direct sampling analysis, coupled with a time of flight mass spectrometer, was developed to discriminate between wild and farmed sea bream on the basis of the docosahexaenoic and arachidonic fatty acid ratio. Good precision in repeatability and reproducibility (relative standard deviation < 15%) was obtained. The fatty acid ratios of the two types of fish were statistically significant (Student's < 0.
View Article and Find Full Text PDFUnlabelled: The substitution and sale of frozen-thawed fish labeled as fresh is a widespread, difficult to unmask commercial fraud and a potential risk for consumer health. Proteomics could help to identify markers for the rapid screening of food samples and the identification of frozen-thawed seafood. Using two-dimensional electrophoresis (2-DE) and high-resolution liquid chromatography tandem mass spectrometry (LC-MS/MS), we identified biomarkers that are able to discriminate between fresh and frozen-thawed tissue samples of curled octopus (Eledone cirrhosa).
View Article and Find Full Text PDFSudan dyes are synthetic azo dyes used by industry in a variety of applications. Classified as carcinogenic, they are not allowed in foodstuffs; however, their presence as adulterants in food products has been regularly reported. Here, we describe an innovative screening method to detect Sudan I, II, III, and IV in tomato sauce, palm oil, and chilli powder.
View Article and Find Full Text PDFPrion protein (PrP) is encoded by the PRNP gene, which is highly polymorphic in goats, with polymorphisms encoding amino acid substitutions at the protein level. In the current study, the reactivity of monoclonal antibody (mAb) F99/97.6.
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