Publications by authors named "N Cattaneo"
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 PDFThe invasive blue crab is challenging the Mediterranean basin, progressively declining local populations. This reflects a lower prey availability and suitability of dietary nutrients (mainly n-3 polyunsaturated fatty acids, PUFA). The present study aimed to challenge blue crab males and females with a feed source low in n-3 PUFA with respect to one showing a proper fatty acid profile and to investigate the responses in terms of growth, welfare, lipid characterization of target tissues, and reproductive status.
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- * The study assessed the effectiveness of microencapsulated astaxanthin (ASX) in zebrafish fed diets containing different sizes of MPs over a six-month period, followed by an additional month with either the same or ASX-supplemented diets.
- * Results indicated that microencapsulated ASX helped mitigate oxidative stress and reduce MP accumulation in fish, suggesting it could be a viable strategy to address MPs-related issues in aquaculture.
Article Synopsis
- The study investigated the effects of synthetic flavors on zebrafish over six months, assessing their welfare, growth, feed intake, and reproductive performance.
- Both attractive flavors increased fish feed consumption and growth without compromising welfare, supported by molecular analyses indicating changes in neurohormonal signals.
- The findings suggest that synthetic flavors can enhance aquaculture practices by improving feeding strategies and reducing reliance on natural feeding stimulants.
Aquafeed's contamination by microplastics can pose a risk to fish health and quality since they can be absorbed by the gastrointestinal tract and translocate to different tissues. The liver acts as a retaining organ with the consequent triggering of oxidative stress response. The present study aimed to combine the use of natural astaxanthin with natural-based microcapsules to counteract these negative side effects.
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