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| Effects of deltamethrin on main immune parametersof Chinese mitten crab，Eriochier sinensis |
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| DOI：10.16768/j.issn.1004-874X.2017.03.022 |
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| Abstract: |
| In this research，the effects of deltamethrin on immune parameters were revealed by dectecting the
changes of total hemocytes count（ THC），phagocytic activity，phenoloxidase（PO） activity，acid phosphatase
（ACP） activity and alkaline phosphatase（AKP） activity in hemolymph of Chinese mitten crab under different
concentrations of deltamethrin（0，0.19，0.30，0.41，0.52 μg/L） exposure. The results showed that deltamethrin
had evident effects on immune parameters of Chinese mitten crab，THC increased after 6 h and 12 h exposure to low
concentrations of deltamethrin including 0.19 μg/L and 0.30 μg/L，and then decreased to normal level at 96 h. On the
contrary，high concentration（ 0.41μg/L and 0.52μg/L） exposure declined the THC after 24 h，which was significantly
lower than that of control group at 96 h. The phagocytic activity decreased under each concentration and the higher
concentration made a higher inhibition of phagocytic activity. After exposure to 0.52μg/L deltamethrin，PO activity
increased significantly at 6 h and then decreased gradually till 96 h，which had no significant difference among
each group. However，both ACP and AKP activity decreased at 6 h exposure to 0.52μg/L deltamethrin and was
significantly lower than those of control at each time point. |
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