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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/192124
Olive Pomace and Soybean-Sunflower Acid Oils as Alternative Fat Sources in European Seabass ( Dicentrarchus labrax) Diets: Effects on Performance, Digestibility and Flesh Fatty Acid Composition and Quality Parameters
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The effects of dietary inclusion of soybean-sunflower and olive pomace acid oils on growth, digestibility and flesh composition were studied in European seabass. Eight diets were fed for 100 days (101.37 ± 0.33 g initial weight, mean ± SD), differing in the added fat source (25% fish oil, 75% experimental oil): S (crude soybean oil), SA (soybean-sunflower acid oil), O (crude olive pomace oil) or OA (olive pomace acid oil); 3 blends: S-O, S-OA, SA-OA at a 1:1 ratio; and a diet containing only fish oil (F) as a control. Animals fed OA showed the worst performance among dietary treatments, with the lowest weight, specific growth ratio, average daily gain and the highest feed conversion ratio (p < 0.01). In contrast, other diets including acid oils did not impair performance. Acid oil diets did not affect the apparent digestibility of dry matter, crude protein or total fatty acids (p > 0.05), but a lower digestibility of lipids and saturated fatty acids was observed (p < 0.001). Flesh composition and fatty acid profile were not affected by the high dietary free FA content (p > 0.05). Hence the results suggest that the studied acid oils may potentially be used in fish diets although further studies are needed. Keywords: acid oil; alternative energy source; dietary fat; fat by-product; fish nutrition; flesh quality; free fatty acid.
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VERGE-MÈRIDA, G., BARROETA, A.c., FERRER, Carlos, SERRANO, Tània, GUARDIOLA IBARZ, Francesc, SOLER, María dolores, SALA, Roser. Olive Pomace and Soybean-Sunflower Acid Oils as Alternative Fat Sources in European Seabass ( Dicentrarchus labrax) Diets: Effects on Performance, Digestibility and Flesh Fatty Acid Composition and Quality Parameters. _Animals_. 2022. Vol. 12, núm. 1198. [consulta: 26 de febrer de 2026]. ISSN: 2076-2615. [Disponible a: https://hdl.handle.net/2445/192124]