Effect of hypoxia on immunological,physiological response,and hepatopancreatic metabolism of juvenile Chinese mitten crab <Emphasis Type="Italic">Eriocheir sinensis</Emphasis> |
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Authors: | Renjie Qiu Yongxu Cheng Xuxiong Huang Xugan Wu Xiaozhen Yang Rui Tong |
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Institution: | (1) Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Shanghai Ocean University, No 999 Huchenghuan Road, Lingang New District, Shanghai, 201306, People’s Republic of China |
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Abstract: | The juvenile Chinese mitten crabs Eriocheir sinensis (1.40 ± 0.43 g) were cultured in water of 5.34 ± 0.43 (hypoxia, treatment group) and 21.02 ± 0.06 kPa (high dissolved oxygen
(DO), control group) DO for 24 h, respectively. The total hemocyte counts (THC), the hyaline hemocyte counts were measured
at 0 and 24 h in the treatment group, and superoxide dismutase (SOD) activity, concentrations of lactic acid and hemocyanin
(Hc) in hemolymph and the metabolism of hepatopancreas (concentrations of glucose, total cholesterol, uric acid, total protein,
urea, triglyceride in hepatopancreas) were assayed at 0, 2, 8, and 24 h in both treatment and control groups. The hyaline
hemocyte counts and THC decreased significantly by 66 and 49% after exposure to hypoxic water for 24 h, respectively. SOD
activity, Hc and lactic acid content were significantly affected in treatment group, and there were significant differences
between treatment and control groups. In the treatment group, the concentration of glucose, cholesterol and uric acid in hepatopancreas
had a significant variation for 24 h. The concentration of total protein, urea and triglyceride between treatment and control
groups was not significantly different after 0, 2, 8, 24 h. However, there were significant differences between treatment
and control groups in terms of total protein, glucose, and uric acid concentration. Taken together, the effect of hypoxia
is comprehensive in juvenile Chinese mitten crab Eriocheir sinensis. |
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