Aquaculture International

, Volume 5, Issue 6, pp 479–488

Effect of low temperature on feed intake, growth rate and body composition of juvenile Baltic salmon

  • J. Koskela
  • J. Pirhonen
  • M. Jobling
Article

DOI: 10.1023/A:1018397014684

Cite this article as:
Koskela, J., Pirhonen, J. & Jobling, M. Aquaculture International (1997) 5: 479. doi:10.1023/A:1018397014684

Abstract

Feed intake, specific growth rate and changes in body composition were studied in juvenile (140-170 g) Baltic salmon, Salmo salar, reared at three temperatures (2, 4 and 6 °C) under continuous light conditions. Feed intake increased from 20.4 kJ kg-1 day-1 at 2 °C to 63.8 kJ kg-1 day-1 at 6 °C, and growth rate increased from 0.10% day-1 to 0.37% day-1 over the same temperature interval. The estimated lower temperature limits for feeding and growth were approximately 0.35 °C and 0.6 °C, respectively. Amongst fish reared at 2 °C the majority (86%) of the weight gain consisted of water and protein, and these fish deposited very little lipid. Lipid deposition increased amongst the groups of fish held at the higher temperatures, and amongst the salmon reared at 6 °C lipid accounted for 43% of the body energy gain.

Baltic salmon (Salmo salar) Body composition Feed intake Growth Temperature 

Copyright information

© Chapman and Hall 1997

Authors and Affiliations

  • J. Koskela
    • 1
  • J. Pirhonen
    • 1
  • M. Jobling
    • 2
  1. 1.Laukaa Fisheries Research and AquacultureFinnish Game and Fisheries Research InstituteValkolaFinland
  2. 2.NFHUniversity of TromsoTromsoNorway

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