The utilization of algae with the aim to increase the fatty acid content in muscle of common carp (Cyprinus carpio L.)

0522095 - BÚ 2020 RIV CZ eng J - Journal Article
Kopp, R. - Brabec, T. - Mareš, J. - Maršálková, Eliška - Maršálek, Blahoslav
The utilization of algae with the aim to increase the fatty acid content in muscle of common carp (Cyprinus carpio L.).
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. Roč. 67, č. 1 (2019), s. 91-99. ISSN 1211-8516. E-ISSN 2464-8310
R&D Projects: GA MZe(CZ) QJ1320234
Institutional support: RVO:67985939
Keywords : fish * nutrition * sewage water * green algae * cyanobacteria
OECD category: Fishery
Method of publishing: Open access

The aim of this study was to evaluate the efficiency of feeds with the addition of various algae and cyanobacteria. Common carp (average body mass of 19.6 ± 3.49 g) were randomly divided into 4 groups and fed a commercial feed (control group), the same commercial feed with the addition of 10 % of dry green algae of the genus Chlorella (chlorella group), dry biomass of algae from waste water treatment (algae group), and lyophilized toxic cyanobacterial biomass of the genus Microcystis (microcystis group). After 29 days of the experiment, standard indices for the assessment of feed utilization, external characteristics, fish condition, chemical composition of muscles and composition of fatty acids were measured. The feed variants with the addition of green algae (chlorella and algae groups) appeared to be nutritionally more favorable in our experiment. A higher content of PUFAs and total amount of fats (expressed in units of weight) were found in the groups of fish fed the green algae and algae from waste water treatment supplemented feed.
Permanent Link: http://hdl.handle.net/11104/0306598