Responses of oscar (Astronotus ocellatus) to different temperatures and its interaction with early mild stress
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F25%3A43909604" target="_blank" >RIV/60076658:12520/25:43909604 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.aquaculture.2024.741454" target="_blank" >https://doi.org/10.1016/j.aquaculture.2024.741454</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.aquaculture.2024.741454" target="_blank" >10.1016/j.aquaculture.2024.741454</a>
Alternative languages
Result language
angličtina
Original language name
Responses of oscar (Astronotus ocellatus) to different temperatures and its interaction with early mild stress
Original language description
Non-optimum temperature results in stress in fish through different biological and physiological processes. This study investigated how early mild stress (EMS) and temperature can influence growth, hematology, blood biochemistry, immunological response, antioxidant system, liver enzymes, and stress response of juvenile oscar (Astronotus ocellatus; 8.02 f 0.81 g) before and after acute confinement stress (AC stress). Eight experimental treatments were 17D (farmed at 17 degrees C), 22D (farmed at 22 degrees C), 27D (farmed at 27 degrees C), 32D (farmed at 32 degrees C), 17DES (farmed at 17 degrees C and EMS), 22DES (farmed at 22 degrees C and EMS), 27DES (farmed at 27 degrees C and EMS), and 32DES (farmed at 32 degrees C and EMS). At the end of the experiment (nine weeks), there was no significant difference in survival rate, feed conversion ratio, body composition, and survival rate after the AC stress (ten weeks). The growth rates in the 17 and 32 degrees C groups were lower than others, showing the negative effect of temperature being too high or too low. After nine weeks, fish farmed at 32 degrees C had the highest hematological parameters (hematocrit, hemoglobin, red blood cells, and blood performance) and liver enzymes (lactate dehydrogenase, alanine transaminase, and aspartate transaminase). This group also has the lowest lysozyme, alternative complement pathway (ACH50), immunoglobulin, complement C3, complement C4, superoxide dismutase, and glutathione peroxidase. The EMS did not positively or negatively affect fish physiology in this study. In conclusion, the optimum temperature for oscar to achieve the best growth performance, immune response, and health status is 22-27 degrees C.
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
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Aquaculture
ISSN
0044-8486
e-ISSN
1873-5622
Volume of the periodical
594
Issue of the periodical within the volume
neuvedeno
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
14
Pages from-to
nestránkováno
UT code for WoS article
001292139500001
EID of the result in the Scopus database
2-s2.0-85200743390