Adaptation to pelleted feed in pikeperch fingerlings: learning from the trainer fish over gradual adaptation from natural food

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F17%3A43895357" target="_blank" >RIV/60076658:12520/17:43895357 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.alr-journal.org/articles/alr/abs/2017/01/alr160155/alr160155.html" target="_blank" >https://www.alr-journal.org/articles/alr/abs/2017/01/alr160155/alr160155.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/alr/2017008" target="_blank" >10.1051/alr/2017008</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Adaptation to pelleted feed in pikeperch fingerlings: learning from the trainer fish over gradual adaptation from natural food

Popis výsledku v původním jazyce

Pikeperch (Sander lucioperca) is commercially important as well as a valued culinary fish with potential for intensive culture. One of the basic problems in pikeperch culture in recirculating aquaculture systems is adapting early life stages to pelleted feed (PF). Our work compares four different ways of adapting 6-week-old pikeperch fingerlings (standard length, SL = 29.30 +/- 2.14 mm; weight, W = 0.38 +/- 0.08 g) to feeding on a commercial diet. The methods are designated, A - use of trainer fish (Vimba vimba; SL = 36.88 +/- 3.28 mm; W = 0.77 +/- 0.26 g) and direct application of PF; B - use of trainer fish and gradual addition of PF with natural food (natural feed (NF), chironomid larvae); C - direct application of PF only; D - gradual addition of PF with NF. The growth trial experiment (including adaptation to PF) lasted 14 days by which time all experimental groups were accepting PF. Pikeperch fingerlings in group A grew significantly faster and PF was more readily accepted compared to other groups (SL = 46.11 +/- 4.09 mm; W = 1.44 +/- 0.38 g; specific growth rate = 9.48 +/- 0.83% day-(1)). Other characteristics observed (total weight increment, feed conversion ratio) also support the use of trainerfish and direct application of PF for pikeperch in their adaptation to intensive culture. It is also an illustration of applicable use of learning potential in fish which can be usable for other fish species.

Název v anglickém jazyce

Adaptation to pelleted feed in pikeperch fingerlings: learning from the trainer fish over gradual adaptation from natural food

Popis výsledku anglicky

Pikeperch (Sander lucioperca) is commercially important as well as a valued culinary fish with potential for intensive culture. One of the basic problems in pikeperch culture in recirculating aquaculture systems is adapting early life stages to pelleted feed (PF). Our work compares four different ways of adapting 6-week-old pikeperch fingerlings (standard length, SL = 29.30 +/- 2.14 mm; weight, W = 0.38 +/- 0.08 g) to feeding on a commercial diet. The methods are designated, A - use of trainer fish (Vimba vimba; SL = 36.88 +/- 3.28 mm; W = 0.77 +/- 0.26 g) and direct application of PF; B - use of trainer fish and gradual addition of PF with natural food (natural feed (NF), chironomid larvae); C - direct application of PF only; D - gradual addition of PF with NF. The growth trial experiment (including adaptation to PF) lasted 14 days by which time all experimental groups were accepting PF. Pikeperch fingerlings in group A grew significantly faster and PF was more readily accepted compared to other groups (SL = 46.11 +/- 4.09 mm; W = 1.44 +/- 0.38 g; specific growth rate = 9.48 +/- 0.83% day-(1)). Other characteristics observed (total weight increment, feed conversion ratio) also support the use of trainerfish and direct application of PF for pikeperch in their adaptation to intensive culture. It is also an illustration of applicable use of learning potential in fish which can be usable for other fish species.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40103 - Fishery

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Aquatic Living Resources

ISSN

0990-7440

e-ISSN

—

Svazek periodika

30

Číslo periodika v rámci svazku

24 March 2017

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

6

Strana od-do

—

Kód UT WoS článku

000406770500001

EID výsledku v databázi Scopus

2-s2.0-85016250241