期刊
AQUACULTURE RESEARCH
卷 46, 期 9, 页码 2174-2184出版社
WILEY
DOI: 10.1111/are.12373
关键词
aquaculture; common carp; polyunsaturated fatty acids; fish oil; linseed oil; stable isotopes
类别
资金
- Austrian Science Fund (FWF project) [L516-B17]
- Austrian Science Fund (FWF) [L 516] Funding Source: researchfish
- Austrian Science Fund (FWF) [L516] Funding Source: Austrian Science Fund (FWF)
This study investigated effects of linseed or fish oil-enriched finishing diets on the polyunsaturated fatty acids (PUFA) composition in dorsal muscle tissues of pond-cultured common carp (Cyprinus carpio). After 180days of dietary exposure to cereal diet containing vegetable oil (1%), carp were exposed to 7% linseed (LO) or 7% fish oil-enriched (FO) finishing diets for 30days. FO supplied 17 and 20mg fish(-1)day(-1), respectively, of the long-chain n-3 fatty acids eicosapentaenoic and docosahexaenoic acid for 30days and doubled long-chain PUFA concentrations in carp of the FO pond. The increased supply of short-chain PUFA in LO resulted in higher short chain, but not long-chain PUFA, showing that there was very little PUFA conversion. Thus, dietary short-chain PUFA could not compensate for the low levels of dietary long-chain PUFA in LO. However, moderate supply of dietary long-chain PUFA in finishing diets for 30days is very efficient in increasing nutritionally important long-chain PUFA concentrations in carp.
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