トコブシの酸素消費量およびアンモニア態窒素排泄量に及ぼす絶食の影響

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タイトル別名
  • Oxygen Consumption and Ammonia Excretion by the Abalone Sulculus diversicolor aquatilis in Starved Condition.
  • トコブシの酸素消費量およびアンモニア態窒素排せつ量に及ぼす絶食の影響
  • トコブシ ノ サンソ ショウヒリョウ オヨビ アンモニアタイ チッソ ハイセツ

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Oxygen consumption and ammonia excretion were investigated during a long term starvation in an abalone Sulculus diversicolor aquatilis. Abalone used in the present study were 14 specimens ranged from 0.14 to 17.10g in wet weight of soft body (W, g). They were kept starved in a closed aquarium at 24°C. Oxygen consumption and ammonia excretion rates were measured by individual in a closed bottle with several days interval until death by starvation. Oxygen consumption rate (R, μl O2/ind./h) of the abalone increased linearly with an increase in W and decreased with the period of starvation (T, days); R=92.019 W0.914 0.987T. Ammonia excretion rate (E, μmol/ind./h) increased linearly with an increase in W. Until the 17th day from commencement of the experiment E increased with an extention in T, however, it decreased with extention of T after the 17th day and they are expressed as E=0.369 W0.78 T0.413 and E=2.151 W1.012 T-0.454, respectively. The O/N ratios for abalones just after feeding were relatively high and indicate an apparent dependence upon carbohydrates in the feeding period. After about 2 weeks starvation, the O/N ratios showed relatively low and constant, followed by standard protein energy utilization thereafter.

収録刊行物

  • 日本水産学会誌

    日本水産学会誌 57 (11), 2001-2006, 1991

    公益社団法人 日本水産学会

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