Abstract

Using the energy required (digestible energy need, DEN) to grow I kg of wet body weight, feed ration models can be created that accurately calculate the daily feed requirements for specific strains/stocks of fish and farm locality. This study examines the effect of body weight and temperature on the DEN. The relationship was examined using data from the current scientific literature for selected farmed fish species. In general, the DEN increased with increasing body weight for salmoniformes and pleuronectiformes. However, no effect of temperature was found for any groups examined by systematic order or species. Perciformes fish showed no effect of body weight or temperature on the DEN. This may be attributed to differences in the way that body composition changes occur among species as they grow (e.g., changes in fat storage), which in turn may be explained by an adaptation to life in warmer water. (c) 2005 Elsevier B.V. All rights reserved

Keywords

Feed consumption; Growth; Growth efficiency; Digestible energy; Fish; Feed management

Published in

Aquaculture
2006, Volume: 251, number: 2-4, pages: 438-455
Publisher: ELSEVIER SCIENCE BV

SLU Authors

• Alanärä, Anders

  • Department of Aquaculture, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Fish and Aquacultural Science


Publication identifier

DOI: https://doi.org/10.1016/j.aquaculture.2005.06.023

Permanent link to this page (URI)

https://res.slu.se/id/publ/9544