|Title:||Effects of temperature on oxygen consumption and nitrogenous excretion of juvenile Macrobrachium rosenbergii||Authors:||Jiann-Chu Chen
|Keywords:||AMMONIA-N EXCRETION;SALINITY LEVELS;PRAWN;WATER;CRUSTACEA;MARINE||Issue Date:||Oct-1996||Publisher:||ELSEVIER||Journal Volume:||145||Journal Issue:||1-4||Start page/Pages:||295-303||Source:||AQUACULTURE||Abstract:||
Oxygen consumption (O-2 mg g(-1) h(-1)) and ammonia-N, urea-N, organic-N and total nitrogen excretion (N mu g g(-1) h(-1)) of juvenile Macrobrachium rosenbergii increased directly with temperature in the range of 17-32 degrees C. No urea-N excretion was found at 17 degrees C. The proportion of ammonia-N excretion to total nitrogen excreted by prawns was inversely related to temperature, whereas the proportion of urea-N excretion to total nitrogen excreted increased directly with temperature. At 32 degrees C, the amount of ammonia-N, urea-N and organic-N excreted by prawns accounted for 70.2%, 4.2% and 25.6%, respectively of total nitrogen. Relationships between cumulative amount of oxygen consumed, ammonia-N excreted, organic-N excreted, and total nitrogen excreted, temperature and time are given.
|Appears in Collections:||水產養殖學系|
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