Live feed enrichments using microalgae for pikeperch (Sander lucioperca) larval culture

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F24%3A00585479" target="_blank" >RIV/61388971:_____/24:00585479 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/24:43908110 RIV/60076658:12520/24:43908110

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1111/jwas.13059" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1111/jwas.13059</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jwas.13059" target="_blank" >10.1111/jwas.13059</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Live feed enrichments using microalgae for pikeperch (Sander lucioperca) larval culture

Popis výsledku v původním jazyce

This trial aimed to customize pikeperch (Sander lucioperca) larval nutrition using live feed enrichments based on Chlorella vulgaris and Trachydiscus minutus. Pikeperch larvae were fed with rotifers and Artemia enriched with C. vulgaris and T. minutus during the first 17 days after exogenous feeding (started 4 days post-hatching [dph]) and only Artemia until 20 dph. Larvae were exposed to seven different enrichments: (a) Nannochloropsis occulata (Nanno 3600 reed Mariculture) (Control), (b) C. vulgaris cultured at 20 degrees C in BG-117 medium (BG20), (c) C. vulgaris cultured at 30 degrees C in BG-117 medium (BG30), (d) T. minutus cultured at 15 degrees C (T15), (e) T. minutus cultured at 25 degrees C (T25), (f) C. vulgaris cultured at 20 degrees C in urea medium (U20), and (g) C. vulgaris cultured at 30 degrees C in urea medium (U30). After 20 days, no significant differences were found between treatments on total length, standard length, myomere height, and eye diameter. On the contrary, significant differences were found in larval fatty acid composition after the trial period. Larvae from the BG30 treatment showed a significantly higher concentration of docosahexaenoic acid (5.61%), and larvae from the T25 treatment had a higher concentration of eicosapentaenoic acid 12.95%. Furthermore, larvae from the U20 treatment had a significantly higher arachidonic acid concentration of 0.116%. Overall, regarding essential fatty acid concentration, a significant difference was observed between the control treatment (Nannochloropsis) and the other treatments. No adverse effects were found on growth or survival when Nannochloropsis-enriched live feed was replaced with the other enrichments. This trial's results will help optimize the pikeperch larvae's nutritional requirements and diversify the live feed enrichments used during the first feeding.

Název v anglickém jazyce

Live feed enrichments using microalgae for pikeperch (Sander lucioperca) larval culture

Popis výsledku anglicky

This trial aimed to customize pikeperch (Sander lucioperca) larval nutrition using live feed enrichments based on Chlorella vulgaris and Trachydiscus minutus. Pikeperch larvae were fed with rotifers and Artemia enriched with C. vulgaris and T. minutus during the first 17 days after exogenous feeding (started 4 days post-hatching [dph]) and only Artemia until 20 dph. Larvae were exposed to seven different enrichments: (a) Nannochloropsis occulata (Nanno 3600 reed Mariculture) (Control), (b) C. vulgaris cultured at 20 degrees C in BG-117 medium (BG20), (c) C. vulgaris cultured at 30 degrees C in BG-117 medium (BG30), (d) T. minutus cultured at 15 degrees C (T15), (e) T. minutus cultured at 25 degrees C (T25), (f) C. vulgaris cultured at 20 degrees C in urea medium (U20), and (g) C. vulgaris cultured at 30 degrees C in urea medium (U30). After 20 days, no significant differences were found between treatments on total length, standard length, myomere height, and eye diameter. On the contrary, significant differences were found in larval fatty acid composition after the trial period. Larvae from the BG30 treatment showed a significantly higher concentration of docosahexaenoic acid (5.61%), and larvae from the T25 treatment had a higher concentration of eicosapentaenoic acid 12.95%. Furthermore, larvae from the U20 treatment had a significantly higher arachidonic acid concentration of 0.116%. Overall, regarding essential fatty acid concentration, a significant difference was observed between the control treatment (Nannochloropsis) and the other treatments. No adverse effects were found on growth or survival when Nannochloropsis-enriched live feed was replaced with the other enrichments. This trial's results will help optimize the pikeperch larvae's nutritional requirements and diversify the live feed enrichments used during the first feeding.

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

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Journal of the World Aquaculture Society

ISSN

0893-8849

e-ISSN

1749-7345

Svazek periodika

55

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

18

Strana od-do

e13059

Kód UT WoS článku

001168738000001

EID výsledku v databázi Scopus

2-s2.0-85186444251