ガザミ幼生の脱皮率に及ぼすＥＰＡとＤＨＡの影響

DOI NDLデジタルコレクション 日本農学文献記事索引 Web Site 被引用文献12件 参考文献7件

書誌事項

タイトル別名
  • The Effect of Dietary EPA and DHA on the Molting Rate of Larval Swimming Crab Portunus trituberculatus.
  • ガザミヨウセイ ノ ダッピリツ ニ オヨボス EPA ト DHA ノ エイキョウ

この論文をさがす

抄録

This experiment was conducted to investigate the effectiveness of two n-3 highly unsaturated fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), for larval swimming crab Portunus trituberculatus. Two experiments were carried out in 1l beakers with duplicate lots, each holding 30 larvae. Starting with the larval stage zoea 3, and though the megalopa stage, they were fed Artemia containing different amounts of EPA and/or DHA prepared using emulsifed oils (EPA ethyl ester, DHA ethyl ester, and DHA38G). During the feeding experiments, the molting rate and the inter-molt period in days to reach each stage were measured. It was found that EPA and DHA had different roles in larval development. EPA was effective in maintaining the survival rates for larvae, while DHA accelerated the developmental period and improved the growth of carapace. The highest molting rate and largest carapace width at the first crab were observed when the larvae were fed Artemia enriched with DHA 38G from the zoea 3 stage. Larvae fed unenriched Artemia had low molting rates and the smallest carapace width. These results suggest that it is important to feed the swimming crab with Artemia containing both EPA and DHA from the zoea 3 stage to avert the high rate of cannibalism among them during mass seed production.

収録刊行物

  • 日本水産学会誌

    日本水産学会誌 65 (6), 998-1004, 1999

    公益社団法人 日本水産学会

被引用文献 (12)*注記

もっと見る

参考文献 (7)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ