Considering Two Aspects of Fish Welfare on African Catfish (Clarias gariepinus) Fillet throughout Postmortem Condition: Efficiency and Mechanisms
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F22%3A43905247" target="_blank" >RIV/60076658:12520/22:43905247 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.3390/foods11244090" target="_blank" >https://doi.org/10.3390/foods11244090</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/foods11244090" target="_blank" >10.3390/foods11244090</a>
Alternative languages
Result language
angličtina
Original language name
Considering Two Aspects of Fish Welfare on African Catfish (Clarias gariepinus) Fillet throughout Postmortem Condition: Efficiency and Mechanisms
Original language description
Knowledge about fish welfare and its impact on fish fillet quality is still insufficient. Therefore, the influence of two aspects of fish welfare (slaughtering method: bled and unbled fish; fish stock densities: 90, 120, and 150 kg center dot m(-3)) on African catfish fillet quality during postmortem conditions was investigated. The aim of study was to determine (i) the efficiency of bleeding on oxidation progress and (ii) the influence of stock density on fillet quality. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) showed a higher protein loss in the unbled than in the bled groups, especially in the heavy myosin chain (MHC) band. However, density did not show any influence on protein profile. Western blot analysis showed fewer oxidized carbonyls in the bled than in the unbled groups; higher oxidation development, microbial growth, and lower hardness were observed in unbled fillets. Additionally, hardness was higher at 90 and 120 kg center dot m(-3) densities in bled fillet compared to 150 kg center dot m(-3). The first three days of storage showed a higher oxidation rate in unbled fillets than in bled fillets, confirming the contribution of hemoglobin to oxidation development with different mechanisms of protein oxidation. The obtained results revealed the same fillet quality in all aspects at either 90 or 120 (kg center dot m(-3)) stock densities, which would suggest 120 kg center dot m(-3) for the fishery industry. However, higher stocking density in this study would not be appropriate for fish welfare.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40103 - Fishery
Result continuities
Project
<a href="/en/project/QK22020144" target="_blank" >QK22020144: Species and technological diversification of productive aquaculture in the Czech Republic with the aim to increase its efficiency and competitiveness</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Foods
ISSN
2304-8158
e-ISSN
2304-8158
Volume of the periodical
11
Issue of the periodical within the volume
24
Country of publishing house
CH - SWITZERLAND
Number of pages
19
Pages from-to
nestrankovano
UT code for WoS article
000902605400001
EID of the result in the Scopus database
2-s2.0-85144715612