Responses of oscar (Astronotus ocellatus) to different temperatures and its interaction with early mild stress

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Responses of oscar (Astronotus ocellatus) to different temperatures and its interaction with early mild stress

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Responses of oscar (Astronotus ocellatus) to different temperatures and its interaction with early mild stress

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40103 - Fishery

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Aquaculture

ISSN

0044-8486

e-ISSN

1873-5622

Svazek periodika

594

Číslo periodika v rámci svazku

neuvedeno

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

14

Strana od-do

nestránkováno

Kód UT WoS článku

001292139500001

EID výsledku v databázi Scopus

2-s2.0-85200743390