Nanoencapsulated Clove Oil Applied as an Anesthetic at Slaughtering Decreases Stress, Extends the Freshness, and Lengthens Shelf Life of Cultured Fish.
Amanda E. López-Cánovas,Isabel Cabas,Elena Chaves-Pozo,María Ros-Chumillas,Laura Navarro-Segura,Antonio López-Gómez,Jorge M.O. Fernandes,Jorge Galindo-Villegas,Alfonsa García-Ayala +8 more
TLDR
Using CO encapsulated in β-CD for anesthetizing fish can be regarded as an improved fish-stunning technique that reduces the anesthesia-induction time, decreases the stress response, and extends the shelf life of fresh fish.Abstract:
In the aquaculture industry, fish are stunned using a wide range of methods, but all of them trigger stress responses and affect the fish flesh quality. Chilled water is considered one of the most efficient methods, but even this is not a stress-free experience for the fish. Anesthetics included in the ice slurry or in water could decrease this stress and delay the loss of flesh quality. In this work, we analyze the effect of clove oil (CO) nanoencapsulated in β-cyclodextrins (β-CD) (CO + β-CD), incorporated in the stunning bath, on the stress response and the organoleptic attributes of fresh marine and freshwater fish from four economically important fish species: Atlantic salmon, European seabass, Nile tilapia, and Rainbow trout. CO + β-CD reduces the time required to induce anesthesia, independently of water salinity, habitat or water temperature. The plasmatic glucose and cortisol levels decreased in all four species, although the concentrations of CO varied between species. Moreover, plasmatic lactate level differed between the marine and freshwater fish. The use of CO + β-CD extended the shelf life of fish from all the species studied (by 3-7 days). In conclusion, using CO encapsulated in β-CD for anesthetizing fish can be regarded as an improved fish-stunning technique that reduces the anesthesia-induction time, decreases the stress response, and extends the shelf life of fresh fish.read more
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Dietary supplementation of Bacillus velezensis improves Vibrio anguillarum clearance in European sea bass by activating essential innate immune mechanisms.
L. Monzón-Atienza,J. Bravo,Álvaro Fernández-Montero,Ives Charlie-Silva,Daniel Montero,José Ramos-Vivas,Jorge Galindo-Villegas,Félix Acosta +7 more
TL;DR: In this article , two equal groups were fed for 30 days with a steady diet, with one treatment supplemented with B. velezensis, and the results provided clear vertical evidence on the beneficial immune effects of B.vezensis and unveil some fundamental immune mechanisms behind its application as a probiotic agent in intensively cultured European sea bass.
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A Long-Term Stable Sensor Based on Fe@PCN-224 for Rapid and Quantitative Detection of H 2 O 2 in Fishery Products
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Vaccination of Gilthead Seabream After Continuous Xenoestrogen Oral Exposure Enhances the Gut Endobolome and Immune Status via GPER1
Pablo Castejón,Isabel Cabas,Victoria Gómez,Elena Chaves-Pozo,Isabel Cerezo-Ortega,Miguel Ángel Moriñigo,E. Martinez-Manzanares,Jorge Galindo-Villegas,Alfonsa García-Ayala +8 more
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Journal ArticleDOI
Twenty Years of Research in Seabass and Seabream Welfare during Slaughter.
TL;DR: The most common commercial stunning method in seabream and seabass is based on hypothermia, but other methods such as electrical stunning, carbon dioxide narcosis or anaesthetic with clove oil, are discussed in relation to the time to reach the unconsciousness stage and some welfare indicators as mentioned in this paper.
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TL;DR: Cyclodextrins are a family of cyclic oligosaccharides composed of α-(1,4) linked glucopyranose subunits.
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Anaesthetic and Sedative Techniques for Aquatic Animals
Lindsay G. Ross,Barbara Ross +1 more
TL;DR: This chapter discusses the role of anaesthesia in the response of aquatic ectotherms to anaesthesia, and the features of anaesthetic agents and their legal use.
Journal ArticleDOI
A review on cyclodextrin encapsulation of essential oils and volatiles
TL;DR: In this article, a guest inclusion into the apolar CyD cavity is proved by various analytical techniques, including NMR spectroscopy, UV-visible absorption spectrography, optical rotatory dispersion and circular dichroism, fluorescence, infrared/FT-IR spectrographic, thermo-analysis, TLC, mass spectromety, and powder X-ray diffractometry.