Now showing items 1-2 of 2

    • Article

      Comparison of fatty acid profile between cultured and wild-caught grouper Epinephelus coioides 

      JD Toledo, ES Ganzon-Naret & H Nakagawa - Suisan Zoshoku, 2005 - Japan Aquaculture Society
      The lipid content and fatty acid composition were examined in the liver, eye, muscle, brain and intraperitoneal fat body (IPF) of hatchery-bred and wild-caught orange-spotted grouper, Epinephelus coioides. The cultured and wild grouper were classified into three different body weights (small, medium and large size), and submitted to lipid content and fatty acid analysis. Muscle lipid in cultured grouper increased lineally with growth, but that of wild fish decreased. The amount of lipid in the IPF in cultured fish was higher than wild fish. Lipid content and essential fatty acids in cultured fish showed significant change with growth. All organs in the early growth stage of cultured fish seemed to contain poor arachidonic acid (AA) than the wild fish. The liver of small sized cultured fish contained low AA and docosahexaenoic acid (DHA), but no profound change was found in AA during growth of fish. While the proportion of DHA in the liver and IPF increased with growth in cultured fish, muscle DHA decreased with growth. The difference in fatty acid composition between cultured and wild fish disappeared with growth.
    • Article

      Effect of delayed feeding of Artemia salina and partial replacement by Moina macrocopa on growth and survival of sea bass, Lates calcarifer (Bloch), larvae. 

      ES Ganzon-Naret & AC Fermin - The Israeli Journal of Aquaculture-Bamidgeh, 1994 - Society of Israeli Aquaculture and Marine Biotechnology
      One-day old sea bass larvae (0.93-2.03 mm total length, 0.94-1.00 mg wet body weight) were stocked at a density of 30 larvae per liter in nine 250 l capacity fiberglass tanks. Fish were reared for 26 days on three different feeding regimes using Brachionus plicatiilis, Artemia salina and Moina macrocopa as live foods. Delaying feeding of Artemia nauplii until day 15 resulted in slower larvae growth rates compared with fish fed Artemia starting on day 10. Partial replacement of Artemia nauplii by Moina starting on day 17 showed a marked increase in larval growth over the delayed Artemia treatment. Percent survival of larvae amongst all three treatments did not vary significantly.