Evaluation of different feeding frequencies in RAS-based juvenile pikeperch (Sander lucioperca) aquaculture br

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F23%3A43906199" target="_blank" >RIV/60076658:12520/23:43906199 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.aquaculture.2022.738815" target="_blank" >https://doi.org/10.1016/j.aquaculture.2022.738815</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aquaculture.2022.738815" target="_blank" >10.1016/j.aquaculture.2022.738815</a>

Result language

angličtina

Original language name

Evaluation of different feeding frequencies in RAS-based juvenile pikeperch (Sander lucioperca) aquaculture br

Original language description

Feeding regime, which involve selection of appropriate diet and application of feed itself is a decisive factor in intensive, RAS-based production system - more so, for carnivorous fish culture. It is critical for the economics, resource (feed/nutrients) use efficiency and final profit yield. The present study examined different feeding strategies in juvenile pikeperch reared in RAS for growth performance, survivability, feed utilization, and fish welfare. Juvenile pikeperch (106.59 +/- 24.84 g) were cultured in RAS for 112 days and fed at five different feeding intervals (2-h, 4-h, 6-h, 8-h and 12-h) using automatic feeder Imetronic (R) (Pessac, France). Fishes were fed a commercially standardized pikeperch diet. A higher degree of growth heterogeneity was observed in groups fed in shorter feeding intervals (2-h, 4-h and 6-h). At the end of the experiment, slightly higher fin damage was observed in all tested groups compared to fin conditions of stocked fish especially for dorsal and caudal fins. No significant differences were observed in selected biochemical parameters indicating liver, pancreas, and intestinal function. All tested fish were adequately fed providing sufficient nutrients for proper pikeperch growth and welfare. Nevertheless, the feeding interval 8-hour was evaluated as optimal. This frequency supports higher fish conditions (Fulton&apos;s coefficient) and the specific growth rate (SGR), survival rate (SR), weight heterogeneity (CV2), lower fin erosion compared to the other tested frequency and optimal level of biochemical parameters in blood plasma.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

40103 - Fishery

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)

Publication year

2023

Confidentiality

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

Name of the periodical

Aquaculture

ISSN

0044-8486

e-ISSN

1873-5622

Volume of the periodical

562

Issue of the periodical within the volume

neuvedeno

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

—

UT code for WoS article

000869573500005

EID of the result in the Scopus database

2-s2.0-85138101460