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Application of the minute monogonont rotifer proales similis de Beauchamp in larval rearing of seven-band grouper epinephelus septemfasciatus


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タイトル: Application of the minute monogonont rotifer proales similis de Beauchamp in larval rearing of seven-band grouper epinephelus septemfasciatus
著者: Wullur, Stenly / Sakakura, Yoshitaka / Hagiwara, Atsushi
発行日: 2011年 5月
出版者: Elsevier BV
引用: Aquaculture, 315(3-4), pp.355-360; 2011
抄録: In comparison to the rotifer Brachionus rotundiformis, the euryhaline rotifer Proales similis has a much smaller body size (83μm in length and 40μm in width), and it may be applicable as live food for rearing marine fish larvae with a very small mouth size. A mass culture technique of P. similis was recently established, and it has already been confirmed that marine fish larvae could ingest P. similis. In the present study, we further investigated the use of P. similis as an initial food by observing larval ingestion and digestion and analyzing the nutritional profile, as well as through a 10-day larval rearing trial to investigate survival and growth. Seven-band grouper Epinephelus septemfasciatus larvae showed higher selectivity against P. similis than B. rotundiformis 4. days after hatching. The larvae digested and utilized P. similis as an energy resource as they grew, and survived until the end of the experiment. The fatty acid profile of P. similis changed according to the type of microalgae; Nannochloropsis oculata NIES-2146 strain and "super fresh" Chlorella vulgaris V-12® (Chlorella Industry, Fukuoka, Japan) were used as food sources. Higher growth and survival during the initial 10. days were observed when P. similis and B. rotundiformis were co-fed to the seven-band grouper larvae.
キーワード: Brachionus rotundiformis / Epinephelus septemfasciatus / Fatty acid / Live food / Proales similis / Rotifer
URI: http://hdl.handle.net/10069/25161
ISSN: 00448486
DOI: 10.1016/j.aquaculture.2011.02.025
権利: Copyright © 2011 Elsevier B.V. All rights reserved.
資料タイプ: Journal Article
原稿種類: author
出現コレクション:080 学術雑誌論文

引用URI : http://hdl.handle.net/10069/25161

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