Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/49412
Title: The Effects of Varying Dietary Protein Level on the Growth, Feed Efficiency, Protein Utilization and Body Composition of Gilthead Sea Bream Fry
Authors: Vergara, José Manuel 
Fernández-Palacios, Hipólito 
Robainà, Lidia 
Jauncey, Kim
De La Higuera, Manuel
Izquierdo, Marisol 
UNESCO Clasification: 251092 Acuicultura marina
Keywords: Sparus aurata
Protein
Nutrition
Fry
Issue Date: 1996
Publisher: 0919-9268
Journal: Fisheries Science 
Abstract: The effects of varying dietary protein level on several nutritional parameters of Sparus aurata fry were studied. Seven approximately isoenergetic diets were formulated with protein levels ranging from 35% to 65%, in increments of 5%. Highest specific growth rates were obtained in fish fed 55% protein at a fixed dietary feeding rate of 6% body weight per day, being significantly different from the other fish groups. Feed efficiency was significantly higher with diets containing the highest protein levels, when compared with dietary levels below 45%. Protein efficiency ratio values showed a trend towards an increase up to a maximum with 55% dietary protein, whereas carcass composition was only slightly affected. The minimum dietary protein level producing maximum growth of S. aurata fry was found to be 55%.
URI: http://hdl.handle.net/10553/49412
ISSN: 0919-9268
DOI: 10.2331/fishsci.62.620
Source: Fisheries Science [ISSN 0919-9268], v. 62, p. 620-623
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