Influence of daily feed ration on growth and condition of juvenile pikeperch ( Sander lucioperca ) reared in a recirculating aquaculture system (RAS)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F24%3A43908158" target="_blank" >RIV/60076658:12520/24:43908158 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.17221/33/2024-CJAS" target="_blank" >https://doi.org/10.17221/33/2024-CJAS</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17221/33/2024-CJAS" target="_blank" >10.17221/33/2024-CJAS</a>
Alternative languages
Result language
angličtina
Original language name
Influence of daily feed ration on growth and condition of juvenile pikeperch ( Sander lucioperca ) reared in a recirculating aquaculture system (RAS)
Original language description
The study tested the effect of daily feed ration (DFR: 0.5%, 0.75%, 1.0%, 1.25%, and 1.5% of fish biomass) on juvenile pikeperch ( Sander lucioperca ) with an initial body weight of 21.5 +/- 5.1 g and total length of 144.5 +/- 8.5 mm. The pikeperch were fed floating feed at 8-hour intervals for a duration of 84 days. By the end of the experiment, the group fed DFR of 1.5% exhibited the highest body weight (51.5 +/- 16.1 g) and total length (188.2 +/- 17.8 mm). The weight heterogeneity, measured as the coefficient of variation (CV), ranged between 30.29 and 33.24%. The specific heterogeneity rate (SHR) ranged from 304.44 to 334.94%o/day. The group with DFR of 1.0% exhibited the highest degree of heterogeneity. Minor fin erosion was observed in the caudal fin by the end of the experiment. No significant differences were revealed in selected biochemical parameters indicating the liver, spleen, and intestinal function. All the fish tested were adequately fed, being provided sufficient nutrients for the proper growth of pikeperch. The DFR of 1.5% was evaluated as the most favourable. This amount of feed supported a higher number of values for Fulton's coefficient (FC), specific growth rate (SGR), thermal growth rate (TGR), fish weight heterogeneity, growth of total fish biomass (BG), and optimum level of biochemical parameters in blood plasma.
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
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Czech Journal of Animal Science : Živočišná výroba
ISSN
1212-1819
e-ISSN
1805-9309
Volume of the periodical
69
Issue of the periodical within the volume
6
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
13
Pages from-to
230-242
UT code for WoS article
001257507400001
EID of the result in the Scopus database
2-s2.0-85197538314