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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

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

2017

Confidentiality

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

Name of the periodical

Aquatic Living Resources

ISSN

0990-7440

e-ISSN

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Volume of the periodical

30

Issue of the periodical within the volume

24 March 2017

Country of publishing house

FR - FRANCE

Number of pages

6

Pages from-to

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UT code for WoS article

000406770500001

EID of the result in the Scopus database

2-s2.0-85016250241