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An interesting aspect of the feeding behavior of the larvae was observed in this study. In addition, the nutritional level of rotifers, fed at different food densities, was observed on the basis of calorie content of the rotifers.\nPrawn larvae were reared in 1.5 l glass vessels with funnel shape bottom at an initial density\nof 100 indiv./l. The larvae were fed on Chaetoceros sp., cultured in organic medium, and rotifers\ncultured on Chlorella sp. (0.1×10^\u003c6\u003e cells/ml). The feeding amount was calculated refering\nHIRATA. The density of larvae and the developmental stages were observed every morning\nbefore feeding and the changing of 20% of the rearing water. The rotifers were cultured at\n25°C in a 500 l polycarbonate tank, fed on Chlorella sp. 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シオミズツボワムシの給餌によるクルマエビ幼生の飼育
http://hdl.handle.net/10232/13233
http://hdl.handle.net/10232/13233d641f50a-a6eb-451e-811d-061c378f6393
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-06-09 | |||||
タイトル | ||||||
タイトル | シオミズツボワムシの給餌によるクルマエビ幼生の飼育 | |||||
タイトルよみ | ||||||
タイトルよみ | シオミズツボワムシ ノ キュウジ ニヨル クルマエビ ヨウセイ ノ シイク | |||||
別言語のタイトル | ||||||
その他のタイトル | Rearing of the prawn, Penaeus japonicus, fed on the rotifer, Brachionus plicatilis | |||||
著者 |
山崎, 繁久
× 山崎, 繁久× 宇杉, 正明× 平田, 八郎 |
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著者よみ | ||||||
姓名 | ヤマサキ, シゲヒサ | |||||
著者よみ | ||||||
姓名 | ウスギ, マサアキ | |||||
著者よみ | ||||||
姓名 | ヒラタ, ハチロウ | |||||
別言語の著者 | ||||||
姓名 | YAMASAKI, Shigehisa | |||||
別言語の著者 | ||||||
姓名 | USUGI, Masaaki | |||||
別言語の著者 | ||||||
姓名 | HIRATA, Hachiro | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
要約(Abstract) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Rearing of prawn larvae was tested by feeding them on living and frozen rotifers, through their early developmental stages, from zoea to post-larva. An interesting aspect of the feeding behavior of the larvae was observed in this study. In addition, the nutritional level of rotifers, fed at different food densities, was observed on the basis of calorie content of the rotifers. Prawn larvae were reared in 1.5 l glass vessels with funnel shape bottom at an initial density of 100 indiv./l. The larvae were fed on Chaetoceros sp., cultured in organic medium, and rotifers cultured on Chlorella sp. (0.1×10^<6> cells/ml). The feeding amount was calculated refering HIRATA. The density of larvae and the developmental stages were observed every morning before feeding and the changing of 20% of the rearing water. The rotifers were cultured at 25°C in a 500 l polycarbonate tank, fed on Chlorella sp. Sampling for calorimetry was started at the time when the Chlorella sp. density in the rotifer culture decreased to 0.5×10^<6> cells/ml. Samples were taken at 6 hours intervals, and calorie contents determined by bomb calorimetry. Survival rates of the larvae fed on living and frozen rotifers, decreased rapidly 26 and 38%, respectively, during the 1st zoea stage; and the rapid decrease of 20% was observed in the treatment of Chaetoceros sp. during the 3rd mysis stage. From this, it can be concluded that the 1st zoea stage larva was typically herbivorous while the 3rd mysis stage was typically carnivorous. The poriod between them thus exhibited an omnivorous habit. Calorie content of rotifer decreased from 5.1 Kcal/g to 4.6 Kcal/g after all Chlorella sp. cells were consumed. Frozen rotifers showed the same food efficiency as living rotifers for the rearing of prawn larvae after the 2nd zoea stage. |
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収録雑誌名 |
鹿児島大学水産学部紀要=Memoirs of Faculty of Fisheries Kagoshima University 巻 30, p. 289-294 |
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作成日 | ||||||
日付 | 1981-12-25 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
ISSN | 0453087X | |||||
NII書誌ID(雑誌) | ||||||
収録物識別子タイプ | NCID | |||||
NC ID | AN00040498 | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
NDC | ||||||
主題Scheme | NDC | |||||
主題 | 666 | |||||
公開者・出版者 | ||||||
出版者 | 鹿児島大学 | |||||
公開者よみ | ||||||
公開者よみ | カゴシマ ダイガク | |||||
公開者別名 | ||||||
公開者別名 | Kagoshima University |