RT info:eu-repo/semantics/article
T1 Replacement of fish oil with vegetable oil blends in feeds for greater amberjack (Seriola dumerili) juveniles: Effect on growth performance, feed efficiency, tissue fatty acid composition and flesh nutritional value
A1 Pérez Pérez, José Antonio
A1 Monge Ortiz, Raquel
A1 Tomás Vidal, A.
A1 Rodriguez Barreto, D.
A1 Martínez Llorens, S.
A1 Jover Cerdá, M.
A1 Lorenzo, A.
K1 Alternative oil sources
K1 Fatty acid composition
K1 Fish oil substitution
K1 Greater amberjack
K1 Linseed oil
K1 Palm oil
AB This study was undertaken to assess the effects of fish oil (FO) substitution by a mixture of alternative vegetable oils (VO) on Seriola dumerili culture performance. A 154-day feeding experiment was conducted using juveniles (39.2 ± 1.6 g average weight).Three isolipidic and isoenergetic meal-based diets were formulated varying their lipidcomponent. The control diet contained 100% FO (FO100), whereas diets VO50 andVO100 included 1/2 of oil blend and all the oil from blend of palm oil (PO) and linseedoil (LO) as substitute for FO, respectively. Dietary regime did not significantly affectgrowth performance, biometric indices, feed efficiency, plasma chemistry and liverand muscle lipid contents. Nonetheless, dietary VO inclusion impacted on the fattyacid profile of target tissues, especially in the liver. Fatty acid profiles of the fillets reflected those of the dietary oils except that there was apparent selective utilization ofpalmitic acid (C16:0) and oleic acid (C18:1n-9) and apparent selective retention oflong-chain polyunsaturated fatty acids, especially eicosapentaenoic acid (EPA,C20:5n-3) and docosahexaenoic acid (DHA, C22:6n-3). The nutritional value and thepotential ability to prevent the development of coronary heart diseases of the fleshlipid fraction decreased with gradual FO substitution.
SN 1365-2095
YR 2017
FD 2017
LK http://riull.ull.es/xmlui/handle/915/35456
UL http://riull.ull.es/xmlui/handle/915/35456
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 18-oct-2024