Aquaculture International

, Volume 11, Issue 1, pp 109–117

The effect of different HUFA enrichment emulsions on the nutritional value of rotifers (Brachionus plicatilis) fed to larval haddock (Melanogrammus aeglefinus).

  • John Castell
  • Tammy Blair
  • Steven Neil
  • Kenneth Howes
  • Sarah Mercer
  • John Reid
  • Wilfred Young-Lai
  • Brandi Gullison
  • Philippe Dhert
  • Patrick Sorgeloos
Article

DOI: 10.1023/A:1024154106656

Cite this article as:
Castell, J., Blair, T., Neil, S. et al. Aquaculture International (2003) 11: 109. doi:10.1023/A:1024154106656

Abstract

A feeding study was conducted in the winter 2001 to determine the effects of feeding rotifers (Brachionus plicatilis) enriched with various levels of essential fatty acids on the growth and survival of haddock larvae (Melanogrammus aeglefinus). Rotifer enrichment treatments were: 1) mixed algae, 2) high DHA (docosahexaenoic acid, 22:6n-3), 3) high DHA and EPA (eicosapentaenoic acid, 20:5n-3), and 4) DHA, EPA, and AA (arachidonic acid, 20:4n-6). Larvae were fed rotifers enriched with the different treatments from days 1 to 16 post-hatch. From day 17 until 25 all treatment groups were fed rotifers reared on mixed algae and then weaned onto the International Council for Exploration of the SEA (ICES) Standard Reference Weaning diet (http://allserv.rug.ac.t/aquaculture/rend/rend.htm) over a five day period. The experiment was terminated on day 41 post-hatch. The enrichment treatments affected the fatty acid composition of the rotifers and correlated with the accumulation of these fatty acids in the haddock larvae. However, no significant differences in larval growth or survival to 40 days post hatch were detected, suggesting that all treatments provided the minimal essential fatty acid requirements for haddock.

Arachidonic acidDocosahexaenoic acidEicosapentaenoic acidEnrichmentLipid emulsionsMarine fish larvaeMicroalgaeRotifer

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • John Castell
    • 1
  • Tammy Blair
    • 1
  • Steven Neil
    • 1
  • Kenneth Howes
    • 1
  • Sarah Mercer
    • 1
  • John Reid
    • 1
  • Wilfred Young-Lai
    • 1
  • Brandi Gullison
    • 1
  • Philippe Dhert
    • 2
  • Patrick Sorgeloos
    • 2
  1. 1.Fisheries and Oceans CanadaBiological StationSt. AndrewsCanada
  2. 2.Laboratory of Aquaculture & Artemia Reference CenterGhent UniversityGentBelgium