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

DOI 日本農学文献記事索引 Web Site 被引用文献7件

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タイトル別名
  • 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.
  • 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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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.

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