Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/49488
Title: Protein Sparing Effect of Lipids in Diets for Fingerlings of Gilthead Sea Bream
Authors: Vergara, José Manuel 
Robainà, Lidia 
Izquierdo, Marisol 
De La Higuera, Manuel
UNESCO Clasification: 251092 Acuicultura marina
Keywords: Sparus aurata
Protein
Lipid
Sparing effect
Nutrition
Fingerlings
Issue Date: 1996
Publisher: 0919-9268
Journal: Fisheries Science 
Abstract: A feeding trial was conducted to determine the sparing effect of lipids on dietary protein in giltheadsea bream Sparus aurata fingerlings, by combining different levels of protein (42-58%) at two lipid levels (9, 15%) in the diets. Sardinemeal and sardine oil were employed as the main source of dietary protein and lipid, respectively. Weight gain and specific growth rate of fish improved for each dietary protein level when lipids were increased in diets from 9% to 15%, up to 52% dietary protein. There was evidence of a protein sparing effect of dietary lipid, as evident by a reduction of dietary protein from 52 to 46%, and an increase of dietary lipid from 9 to 15% in diets resulting in slightly better fish growth. There were no significant effects on the protein efficiency ratio. The increase of dietary lipid producedan increase in body lipid deposition, both in visceral and non-visceral tissues.
URI: http://hdl.handle.net/10553/49488
ISSN: 0919-9268
DOI: 10.2331/fishsci.62.624
Source: Fisheries Science [ISSN 0919-9268], v. 62, p. 624-628
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