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Effects of different dietary oils in sea bass (Dicentrarchus labrax) nutrition Parpoura, A.C.R.; Alexis, M.N. (2001). Effects of different dietary oils in sea bass (Dicentrarchus labrax) nutrition. Aquacult. Int. 9(6): 463-476. https://dx.doi.org/10.1023/A:1020590701325 In: Aquaculture International. Springer: London. ISSN 0967-6120; e-ISSN 1573-143X

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Trefwoorden

Acids > Organic compounds > Organic acids > Fatty acids Diets Nutrition Products > Fishery products > Processed fishery products > Fish oils Sea bass Vertebrates > Fishes > Osteichthyes > Perciformes > Serranidae > Marine fishes > Sea bass Dicentrarchus labrax (Linnaeus, 1758) [WoRMS] Marien/Kust

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Auteurs		Top
Parpoura, A.C.R. Alexis, M.N., correspondent

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Abstract

Five diets having the same proximate composition but containing different types of supplemental oils, singly or in combination, were used for growing sea bass from 95 g to about 200 g in small sea cages. The oils tested were olive oil, soybean oil and fish oil. The diets formulated contained EPA and DHA levels ranging from 0.88 to 1.35% of the diet. Growth parameters and fish body composition were not significantly affected by the type of oil used. The same was generally apparent for liver and hematological characteristics. The content of phospholipids in EPA and DHA was highest in the livers of fish fed diets supplemented with fish oil. A positive correlation was found between dietary and liver n-6 PUFA. Histological sections indicated extended pathological symptoms (intensive liver degeneration and hemorrhages, changes in the gill structure) in the fish receiving diets supplemented only with plant oils. These symptoms existed but to a smaller frequency and degree in livers of fish fed diets supplemented with plant and fish oil, while were not apparent in those fed the fish oil diet.

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