Influence of daily feed ration on growth and condition of juvenile pikeperch ( Sander lucioperca ) reared in a recirculating aquaculture system (RAS)

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of daily feed ration on growth and condition of juvenile pikeperch ( Sander lucioperca ) reared in a recirculating aquaculture system (RAS)

Popis výsledku v původním jazyce

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&apos;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.

Název v anglickém jazyce

Influence of daily feed ration on growth and condition of juvenile pikeperch ( Sander lucioperca ) reared in a recirculating aquaculture system (RAS)

Popis výsledku anglicky

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&apos;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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40103 - Fishery

Projekt

<a href="/cs/project/QK22020144" target="_blank" >QK22020144: Druhová a technologická diverzifikace produkčního rybářství v ČR s cílem podpořit jeho efektivitu a konkurenceschopnost</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Czech Journal of Animal Science : Živočišná výroba

ISSN

1212-1819

e-ISSN

1805-9309

Svazek periodika

69

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

13

Strana od-do

230-242

Kód UT WoS článku

001257507400001

EID výsledku v databázi Scopus

2-s2.0-85197538314