Effects of different dietary enrichments on fatty acid and biochemical composition of rotifer (Brachionus plicatilis) and Artemia


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ERYALÇIN K. M. , OLGUNER B., TURCİHAN G.

40th Annual Larval Fish Conference, Solomons, Maryland, United States Of America, 19 - 23 June 2016, pp.23

  • Publication Type: Conference Paper / Full Text
  • City: Solomons, Maryland
  • Country: United States Of America
  • Page Numbers: pp.23

Abstract

High quality and nutritionally enriched live feeds improve the quality and quantity of
production in larvae culture. Rotifer (Brachionus plicatilis) and artemia are the most common live feeds used in aquaculture. In this study, two experiment were conducted; rotifer feeding during 8 days (Trial I) and Rotifer and Artemia enrichment (Trial II). In Trial I, five diets were tested (M0 Plus, S.Parkle, w-3 Yeast 60, Beaker's Yeast and Chlorella vulgaris) and in Trial II, effects of four commercially available enrichment products (w-3 Olio, n-3 Top Rich, Red Pepper, Selco) and alternatively two laboratory produced enrichers (Microalgae mixture; Dunaliella salina+Chlorella vulgaris and Emulsion T) were studied on fatty acids and body composition of rotifer and artemia. Alternative enrichment emulsion was also prepared by fish oil, taurine and vitamins (Emulsion T). At the end of the Trial I, overall results showed that S.parkle showed better biomass performance in rotifers. In Trial II, rotifers enriched n-3 Top Rich showed better n-3 HUFA accumulation whereas in artemia enriched Red Pepper showed highest HUFA level and Selco supported other essential fatty acids such as EPA(20:5n-3) and DHA(22:6n-3). In conclusion, commercial enrichment products offer different nutritional components. Further study is needed for alternative local enrichment sources and processing
technology for enhancing live feeds nutritional quality.