Effect of density and mixed culture of largemouth bass (Micropterus salmoides) and pikeperch (Sander lucioperca) on growth, survival and feed conversion rate in intensive culture

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12520%2F21%3A43902841" target="_blank" >RIV/60076658:12520/21:43902841 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.17221/59/2021-CJAS" target="_blank" >https://doi.org/10.17221/59/2021-CJAS</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/59/2021-CJAS" target="_blank" >10.17221/59/2021-CJAS</a>

Result language

angličtina

Original language name

Effect of density and mixed culture of largemouth bass (Micropterus salmoides) and pikeperch (Sander lucioperca) on growth, survival and feed conversion rate in intensive culture

Original language description

In this study, two experiments were performed with the aim to optimize intensive aquaculture of large-mouth bass (Micropterus salmoides). In the first 140-day experiment the effect of the initial fish density was assessed at three levels: low density (LD) 23 kg/m(3), medium density (MD) 35 kg/m(3) and high density (HD) 46 kg/m(3). All three densities provided the same final Fulton&apos;s condition coefficient (FC = 1.24-1.28), specific growth rate (SGR = 0.22-0.24%/day) and survival rate (97-100%). No cannibalism was observed at all tested densities. Feed conversion ratio (FCR = 1.39 +/- 0.21 g/g) was the lowest for LD and the highest (1.61 +/- 0.08 g/g) for MD. The high -est fish biomass (25.7 +/- 2.7 kg/m(3)) was obtained at HD and this density was considered as the most effective density of all tested ones during the intensive culture of largemouth bass. The second 60-day experiment tested the effect of largemouth bass and pikeperch (Sander lucioperca) monoculture and biculture of both species on production efficiency. Higher size heterogeneity was obtained in both (mono-and bicultural) groups of pikeperch (308.91-314.56 parts per thousand/day) compared to the groups of largemouth bass (279.26-284.05 parts per thousand/day). The higher FC (1.09) was found in both types of culture in largemouth bass compared to both methods of culture in pikeperch (0.74-0.78). The lowest SGR was evident in both types of largemouth bass cultures (1.20-1.28%/day). In contrast, the highest SGR was achieved in the bicultural pikeperch (1.88%/day). Similar results like for SGR were also assessed for FCR, where the highest value of FCR was in both cultures of largemouth bass (1.44-1.48 g/g) compared to the lowest FCR in the bicultural of pikeperch (0.73 g/g). Largemouth bass in both tested types of culture had higher survival rates (99.95-99.99%) compared to pikeperch (98.61-98.63%).

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

<a href="/en/project/QK1710310" target="_blank" >QK1710310: Utilization of new biotechnological approaches under Czech aquaculture with the aim to reach effective, high-quality and environmentally friendly fish production</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2021

Confidentiality

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

Name of the periodical

Czech Journal of Animal Science : Živočišná výroba

ISSN

1212-1819

e-ISSN

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Volume of the periodical

66

Issue of the periodical within the volume

10

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

13

Pages from-to

428-440

UT code for WoS article

000704992900005

EID of the result in the Scopus database

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