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Growth and product quality of European eel (Anguilla anguilla) as affected by dietary protein and lipid sources

journal contribution
posted on 2003-04-01, 00:00 authored by U Luzzana, M Scolari, B Campo Dall'Orto, F Caprino, Giovanni Turchini, E Orban, F Sinesio, F Valfre
A 12-week feeding trial was undertaken to evaluate the effects of partial replacement of marine raw materials in the diet with soybean meal and beef tallow on growth and product quality of European eel (Anguilla anguilla ). Based on growth, feed efficiency and chemical composition, soybean meal was found to be an unsuitable ingredient for eel diets as a substitute for fishmeal (25% on a protein basis), probably because of the low digestibility of its carbohydrate content. However, beef tallow can be used to replace 50% of fish oil without reduction in growth, provided that digestible carbohydrates are present in the diet. No major effects of protein and lipid sources in the diet were found on fillet chemical composition. Sensory analysis revealed no significant differences between fish fed the control and the experimental diets, with the exception of salty taste which was significantly higher in fish fed combined soybean meal and beef tallow compared with fish fed the control diet.

History

Journal

Journal of applied ichthyology

Volume

19

Issue

2

Pagination

74 - 78

Publisher

Blackwell Scientific Publications

Location

Berlin, Germany

ISSN

0175-8659

eISSN

1439-0426

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2003, Blackwell Verlag