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The giant freshwater prawn Macrobrachium rosenbergii (14-17 g) was exposed to different temperatures (20, 25, 30 and 35 o C), pH values (4.22, 7.27 and 9.31), salinity levels (0%%, 5%%, 10%% and 15%%) and different concentrations (0.02 (control), 0.55, 1.20 and 3.07 mg l -1 ) of ammonia-N (ammonia as nitrogen) for 7 days. They were then examined for phagocytic activity and clearance...
The giant freshwater prawn Macrobrachium rosenbergii (12-18 g) was examined for phenoloxidase activity, respiratory burst (release of superoxide anion), phagocytic activity and clearance efficiency for the pathogen Lactococcus garvieae at 28 o C. Phenoloxidase activity was higher at intermoult (C stage), whereas respiratory burst was the lowest at C stage among the moult stages of A, B, C,...
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