Počet záznamů: 1  

Starter feed for carnivorous species as a practical replacement of bloodworms for a vertebrate model organism in ageing, the turquoise killifish Nothobranchius furzeri

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    SYSNO ASEP0555994
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevStarter feed for carnivorous species as a practical replacement of bloodworms for a vertebrate model organism in ageing, the turquoise killifish Nothobranchius furzeri
    Tvůrce(i) Žák, Jakub (UBO-W) RID, ORCID, SAI
    Koushik, R. (CZ)
    Dyková, I. (CZ)
    Mráz, J. (CZ)
    Reichard, Martin (UBO-W) RID, ORCID, SAI, SAI
    Celkový počet autorů5
    Zdroj.dok.Journal of Fish Biology - ISSN 0022-1112
    Roč. 100, č. 4 (2022), s. 894-908
    Poč.str.15 s.
    Jazyk dok.eng - angličtina
    Země vyd.GB - Velká Británie
    Klíč. slovaAfrican killifish ; laboratory diet ; nutritional ecology ; practical diet
    Vědní obor RIVEG - Zoologie
    Obor OECDZoology
    CEPGA19-01781S GA ČR - Grantová agentura ČR
    Způsob publikováníOmezený přístup
    Institucionální podporaUBO-W - RVO:68081766
    UT WOS000771139200001
    EID SCOPUS85126793619
    DOI10.1111/jfb.15021
    AnotaceThe absence of a controlled diet is unfortunate in a promising model organism for ageing, the turquoise killifish (Nothobranchius furzeri Jubb, 1971). Currently captive N. furzeri are fed bloodworms but it is not known whether this is an optimal diet. Replacing bloodworms with a practical dry feed would reduce diet variability. In the present study, we estimated the nutritional value of the diet ingested by wild fish and determined the fish-body amino acid profile as a proxy for their nutritional requirements. We compared the performance of fish fed four commercial feeds containing 46%–64% protein to that achieved with bloodworms and that of wild fish. Wild fish target a high-protein (60%) diet and this is supported by their superior performance on high-protein diets in captivity. In contrast, feeds for omnivores led to slower growth, lower fecundity and unnatural liver size. In comparison to wild fish, a bloodworm diet led to lower body condition, overfeeding and male liver enlargement. Out of the four dry feeds tested, the fish fed Aller matched wild fish in body condition and liver size, and was comparable to bloodworms in terms of growth and fecundity. A starter feed for carnivorous species appears to be a practical replacement for bloodworms for N. furzeri. The use of dry feeds improved performance in comparison to bloodworms and thus may contribute to reducing response variability and improving research reproducibility in N. furzeri research.
    PracovištěÚstav biologie obratlovců
    KontaktHana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524
    Rok sběru2023
    Elektronická adresahttps://onlinelibrary.wiley.com/doi/10.1111/jfb.15021
Počet záznamů: 1