Effects of feeding rate on the growth performance of gynogenetic albino sterlet, Acipenser ruthenus (Linnaeus, 1758) larvae

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F17%3A43895320" target="_blank" >RIV/60076658:12520/17:43895320 - isvavai.cz</a>

Result on the web

<a href="http://onlinelibrary.wiley.com/doi/10.1111/jai.13317/epdf" target="_blank" >http://onlinelibrary.wiley.com/doi/10.1111/jai.13317/epdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jai.13317" target="_blank" >10.1111/jai.13317</a>

Result language

angličtina

Original language name

Effects of feeding rate on the growth performance of gynogenetic albino sterlet, Acipenser ruthenus (Linnaeus, 1758) larvae

Original language description

The feeding rate effects were studied on the growth performance of gynogenetic diploid larvae of sterlet Acipenser ruthenus during the first 4weeks of exogenous feeding. The experimental rearing was conducted from 7 to 38days post-hatch (dph) in a circulation system. This was set up in four groups with three replicates (440individuals/replicate), viz: AC-control larvae fed Artemia sp., CFC-control larvae fed compound feed, AG-gynogenetic larvae fed Artemia sp., and CFG-gynogenetic larvae fed compound feed. The larvae were reared in glass tanks (44L volume, 10individuals/L) with the temperature maintained at 18 +/- 0.5 degrees C, photoperiod of 12L:12D and water flow regime of 1-L/min and fed 50%, 25%, 25%, and 9% of their total biomass/day during feeding. Highest TL and WBW of gynogenetic diploid larvae (AG) were observed with 50.6 +/- 1.2mm and 607.3 +/- 36.1mg (n=30) at 38dph. Highest TL and WBW of control larvae (AC) were recorded with 49.5 +/- 3.8mm and 600.8 +/- 88.0mg (n=30), respectively, with 73.1%+/- 11.4% survival; the lowest survival rate was at 46.4%+/- 7.1% (n=30) for the CFG group. The results indicate that the gynogenetic and normal larvae of sterlet fed with live food (Artemia nauplii) from 7dph can achieve higher growth and survivability compared to the larvae fed with formulated test feed. Results of this study suggest that the effective rearing of sterlet larvae from 7 to 38dph strongly depends upon the types of feed rather than the genome manipulation performed.

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)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2017

Confidentiality

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

Name of the periodical

Journal of Applied Ichthyology

ISSN

0175-8659

e-ISSN

—

Volume of the periodical

33

Issue of the periodical within the volume

3

Country of publishing house

DE - GERMANY

Number of pages

5

Pages from-to

323-327

UT code for WoS article

000401429400002

EID of the result in the Scopus database

2-s2.0-85014189219