Studies on the Formation and Hatching of Fertilized Eggs of the Rotifer Brachionus plicatilis-VII. Mass Production of Rotifer Brachionus plicatilis Resting Eggs in 50m3 Tanks.
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- Hagiwara Atsushi
- Graduate School of Marine Science and Engineering, Nagasaki University
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- Hamada Kenichiro
- Faculty of Fisheries, Nagasaki University Nisshin Fine Chemical Co. Ltd.
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- Nishi Akifumi
- Kamiura Station, Japan Sea Farming Center
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- Imaizumi Keinosuke
- Kamiura Station, Japan Sea Farming Center
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- Hirayama Kazutsugu
- Faculty of Fisheries, Nagasaki University
Bibliographic Information
- Other Title
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- 50m<sup>3</sup>水槽を用いたシオミズツボワムシ耐久卵の量産
- 50m3水槽を用いたシオミズツボワムシ耐久卵の量産〔英文〕
- 50m 3 スイソウ オ モチイタ シオミズツボワムシ タイキュウ ラン ノ
- Mass production of rotifer Brachionus plicatilis resting eggs in 50 m3 tanks
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Abstract
Two trials of mass production of L-type rotifer Brachionus plicatilis resting eggs were conducted in 50m3 tanks (40m3 in water volume). Culture temperature was regulated at 18-25°C and salinity at 10-16ppt. Two replicate tanks were used for each trial. The feeding amount in Trial I (fed with Nannochloropsis oculata diet alone) was 7.81kg (dry weight), while it was 32.53kg in Trial II (fed with N. oculata and baker's yeast).<br>The average maximum rotifer density during the 10-day culture period was 151 and 425 individ./ mlin Trials I and II, respectively. The mixis rate was 27.9 (Trial I) and 40.1% (Trial II). No significant difference was found in fertilization rates between trials. The number of resting eggs produced per tank was 1.05×109 (Trial I) and 3.53×109 (Trial II). The number of resting eggs <br>produced from 1g dry weight diet ranged from 87×103 to 149×103, and it did not vary among trials.
Journal
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- NIPPON SUISAN GAKKAISHI
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NIPPON SUISAN GAKKAISHI 59 (1), 93-98, 1993
The Japanese Society of Fisheries Science
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Details 詳細情報について
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- CRID
- 1390001206410530944
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- NII Article ID
- 130001545761
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- NII Book ID
- AN00193422
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- ISSN
- 1349998X
- 00215392
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- NDL BIB ID
- 3814844
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed