The Effect of Culture System on Proximate Composition and Amino and Fatty Acid Profiles of Peled Coregonus peled Fillets期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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The Effect of Culture System on Proximate Composition and Amino and Fatty Acid Profiles of Peled Coregonus peled Fillets

Authors:	V Stejskal J Matousek P Podhorec M Prokesova T Zajic J Mraz

Institution:	1. Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Institute of Aquaculture and Protection of Waters, University of South Bohemia in Ceske Budejovice, ?eské Budějovice, Czech Republicstejskal@frov.jcu.czhttps://orcid.org/0000-0002-7892-695X;3. Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Institute of Aquaculture and Protection of Waters, University of South Bohemia in Ceske Budejovice, ?eské Budějovice, Czech Republic

Abstract:	Proximate composition and amino and fatty acid profiles of peled fillets of both sexes reared in a pond-based system (PS) and intensively cultured in a recirculating aquaculture system (RS) were compared. Significantly higher values of dry matter, fat, and caloric value were found in RS fish, irrespective of sex. Fish from the PS group showed a higher percentage of saturated fatty acids and polyunsaturated fatty acids (PUFA) than those of the RS group. Percentages of n-3 PUFA were lower in the RS group compared to the PS group, while percentages of n-6 PUFA were higher in RS, irrespective of sex. The ratio of n-3:n-6 PUFA was significantly higher for the RS group. Fillets of the PS group showed significantly higher EPA and DHA percentages compared to RS fish. Significant differences were found in amino acid profile, with the PS group showing higher content, especially of serine, glutamic acid, methionine, leucine, and lysine.

Keywords:	Coregonidae fillet composition lipids EPA DHA atherogenic index thrombogenicity index

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