Publications by authors named "B Costas"

The energetic costs of being in stressful conditions require the involvement of hormones associated with metabolic support, which may also influence immune function. The present work aimed to explore the links between tryptophan nutrition and metabolic responses in European seabass (Dicentrarchus labrax) held under space-confined conditions, and subsequently submitted to an immune challenge. To study that, two dietary treatments were evaluated, i.

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Vaccination is an effective, cost-efficient method to preventing disease outbreaks. However, vaccine procedures can induce adverse reactions due to stress, increasing plasma cortisol in the short term. In this context, tryptophan may prove to be fundamental as it has been demonstrated to have various desirable neuroendocrine attributes in different fish species.

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Article Synopsis
  • * While RNAi was first described in shrimp in the mid-2000s, practical applications in shrimp farms are limited due to challenges with cost-effective and easy synthesis and administration of dsRNA.
  • * The review discusses the current understanding of dsRNA mechanisms, design, and administration methods for shrimp, as well as challenges that may impede the widespread adoption of RNAi in crustacean aquaculture.
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Introduction: Despite being a bacterial pathogen with devastating consequences, 's pathogenesis is not fully understood. The aim of the present study was to elucidate if different inoculation routes (intraperitoneal - i.p - injection and bath challenge - known to induce mortality) can induce tenacibaculosis (i.

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Article Synopsis
  • The study investigates how different types of aquafeeds (specifically various combinations of processed animal proteins and alternative ingredients) affect the growth and physiological health of farmed gilthead sea bream over a 77-day period.
  • Four different diets were tested: a diet with processed animal protein (PAP), one without it (NOPAP), a mixed diet (MIX), and a commercial control (CTRL).
  • Findings showed similar growth performance across all diets, but the NOPAP diet resulted in better markers for low oxidative stress and inflammation, while the PAP diet had poorer feed conversion and protein efficiency.
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