Sustitución de aceites de pescado en dietas de engorde de dorada (Sparus aurata) ricas en proteínas vegetales. Efectos sobre el crecimiento y los perfiles de ácidos grasos

  1. Benedito Palos, Laura
Supervised by:
  1. Juan Carlos Navarro Tárrega Director
  2. Miguel Jover Cerdá Director
  3. Jaume Pérez Sánchez Director

Defence university: Universitat Politècnica de València

Fecha de defensa: 10 December 2010

Committee:
  1. Gabriel Mourente Cano Chair
  2. Silvia Martínez Llorens Secretary
  3. David Menoyo Luque Committee member
  4. Josefina Blasco Mínguez Committee member
  5. Covadonga Rodríguez González Committee member

Type: Thesis

Teseo: 301895 DIALNET lock_openDigital CSIC editor

Abstract

[EN]: Aquaculture is one of the major consumers of fish meal and fish oil. However, the continuous expansion of aquaculture and the decreasing global availability of marine oil and fish meal force the industry to explore alternative and sustainable alimentary sources for fish feeds. To address this issue, the feasibility of combined replacement of fish meal and oil by vegetable ingredients was investigated in gilthead sea bream (Sparus aurata) and dietary effect on growth performance and tissue fatty acid profiles were examined. Four diets with a low level of fish meal inclusion were supplemented with lysine (0.55%) and contained soy lecithin (1%). Added oil was either fish oil (FO diet) or a blend of a vegetable oil mixture (17:58:25 of rapeseed:linseed:palm oils) replacing fish oil at 33, 66 and 100% (33VO, 66VO and VO diets).