Processing traits of European catfish ( Silurus glanis Linnaeus, 1758) from outdoor flow-through and indoor recycling aquaculture units
| Autor: | Jean-Paul Blancheton, Zdeněk Adámek, I. Grecu, I. Metaxa, L. Sabarich |
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| Přispěvatelé: | Station Expérimentale d'Aquaculture, Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), MARine Biodiversity Exploitation and Conservation (UMR MARBEC), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut de Recherche pour le Développement (IRD) |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Dorsum
business.industry Flesh [SDE.MCG]Environmental Sciences/Global Changes Aquatic Science Biology biology.organism_classification Fishery Animal science [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems Aquaculture 14. Life underwater Silurus [SDE.BE]Environmental Sciences/Biodiversity and Ecology business Visceral fat Catfish |
| Zdroj: | Journal of Applied Ichthyology Journal of Applied Ichthyology, Wiley, 2015, 31 (S2), pp.38-44. ⟨10.1111/jai.12848⟩ Journal Of Applied Ichthyology (0175-8659) (Wiley-blackwell), 2015-11, Vol. 31, N. Suppl.2, P. 38-44 |
| ISSN: | 0175-8659 1439-0426 |
| DOI: | 10.1111/jai.12848⟩ |
| Popis: | International audience; The quality of fish cultured using recycling units may differ from that of fish from outdoor farming units due to a range of deviating environmental determinants. This applies not only to flesh quality but also to morphological (processing) traits. This study evaluates processing yields of sibling fish cultured in two different farming units: (i) an outdoor pond aquaculture system with a flow‐through regime (24.6 ± 0.2°C), and (ii) indoor tanks using a recirculation aquaculture system (RAS; 26.0 ± 1.0°C). Clear differences were observed in the most important processing traits, i.e. skinned trunk and fillet yields, which were both significantly higher (P < 0.01) in RAS fish due to significantly smaller (P < 0.05) head weight in fish of the flow‐through system. Skin represented a significantly higher (P < 0.01) proportion of total weight in both RAS males and females. The most obvious difference was in the deposited fat weight, which was significantly higher (P < 0.01) in RAS fish. Visceral fat deposits were significantly higher (P < 0.01) in females and ventral and dorsal fat deposits higher (P > 0.05) in males. |
| Databáze: | OpenAIRE |
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