Effects of vegetable dietary lipid sources on fat content and fatty acid profile in turbot (Psetta maxima)
| Autor: | Lois, Salomé, Silva, Elsa, Cabaleiro, S., Ruiz Osenda, M. V., Teijido, A., Medina, Isabel |
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| Přispěvatelé: | Xunta de Galicia, Consejo Superior de Investigaciones Científicas (España) |
| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Popis: | 4 pages, 4 tables.-- 34th WEFTA meeting, 12-15 September 2004, Lübeck-Germany Fish farmed diets are charactericed by high dietary fat levels which gives rise an excesive lipid content in farmed flesh fish. Fish oils and meals are becoming more and more scorce and there is a strong interest in replacing fish oil by vegetable oils. Such substitution must guarantee good nutritional and organoleptic qualities and a healthy growth. Sensorial characteristics of fish are very related to their fatty composition (Flick and Martin, 1992). This composition is highly rely on dietary. Most marine fish species, for example turbot, have an essential fatty acid required, especially eicosapentaenoic acid (EPA: 20:5ω3) and docosahexaenoic acid (DHA: 22:6ω3), because they can not synthesize these fatty acids from precursors in significant amounts (Owen et al., 1975). This must be taken into consideration when vegetable oils are used in the diets. The aim of the study was to evaluate the effects of partial replacement of fish oil by vegetable oil, and the effect of a washout with a return to fish oil (the last month), on fat content and fatty acid profile in farmed turbot, making a comparision with wild turbot The authors acknowledge financial support for Xunta de Galicia (Proyecto PGIDTOORMA08E) and postgraduate grant (Xunta-CSIC) for Salomé Lois |
| Databáze: | OpenAIRE |
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