Polyculture of pikeperch (Sander lucioperca) and Russian sturgeon (Acipenser gueldenstaedtii) using an artificial common pellet - Implications on feed to fish nutrient transfers in recirculating aquaculture system (RAS)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F24%3A43908200" target="_blank" >RIV/60076658:12520/24:43908200 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.aqrep.2024.102288" target="_blank" >https://doi.org/10.1016/j.aqrep.2024.102288</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aqrep.2024.102288" target="_blank" >10.1016/j.aqrep.2024.102288</a>

Result language

angličtina

Original language name

Polyculture of pikeperch (Sander lucioperca) and Russian sturgeon (Acipenser gueldenstaedtii) using an artificial common pellet - Implications on feed to fish nutrient transfers in recirculating aquaculture system (RAS)

Original language description

The purpose of this research was to investigate the effects of monoculture and polyculture on the utilization of an artificial common pellet to produce nutritious products, specifically pikeperch and Russian sturgeon, in a recirculating aquaculture system (RAS) for 84 days. The experiment was conducted under controlled conditions, with specific parameters for: water temperature (21.8+0.4 degrees C), initial weight of the fish (pikeperch: 18.17 +2.65 g; sturgeon: 18.23+3.62 g), volume of the containers (working volume of 272 litres) and feeding rate (1.5 %). Five experimental groups were tested in triplicates, including monoculture groups (pikeperch: 63.46 +18.49 g; sturgeon: 93.52+50.40 g) and three polyculture combinations [P90: 90 % pikeperch (68.63+13.79 g) + 10 % sturgeon (86.10+33.38 g); P80: 80 % pikeperch (76.88+18.06 g) + 20 % sturgeon (103.53+44.60 g); P70: 70 % pikeperch (81.51+19.24 g) + 30% Russian sturgeon (94.48+33.25 g)]. The results indicated that the addition of Russian sturgeon to pikeperch tanks could lead to efficient transfer of feed lipid to fish biomass through sturgeons, but not pikeperch. Polycultures showed better lipid absorption (P70 lipid-ADC 96.06 +1.96 %) from the common pellet than monocultures (pikeperch: lipid-ADC 91.93+6.37 %; sturgeon: lipid-ADC 97.08+2.07 %). Fillet lipid content of pikeperch remained unaltered across RAS monocultures and polycultures but changed positively in Russian sturgeon in polyculture (P70 2.64+0.71 % &gt; P0 1.75+0.75 %). In both species, polyculture fillets accumulated 5-7 % higher MUFA (oleic acid, C18:1n-9) than monoculture fillets. The major conclusions drawn from this research are that polyculture group P90 had both fish species flesh with highest muscle reserves of glycine and proline. In polyculture, critically indispensable muscle lysine reserves depleted in pikeperch, but Russian sturgeon muscle amino acid profile was stable. Given the global constraints on land availability, the study proposes RAS polyculture as a potentially productive and nutritious aquaculture system of the future. The research also suggests that resilient species for RAS polyculture need to be identified, proposing Russian sturgeon as a possible candidate.

Czech name

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Czech description

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Type

J_imp - 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

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2024

Confidentiality

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

Name of the periodical

Aquaculture Reports

ISSN

2352-5134

e-ISSN

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Volume of the periodical

38

Issue of the periodical within the volume

neuvedeno

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

10

Pages from-to

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UT code for WoS article

001288200000001

EID of the result in the Scopus database

2-s2.0-85200228969