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《Journal of Dalian Fisheries University》 2006-04
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Effects of starvation on factors associated with immunity in yellow catfish(Pelteobagrus fulvidraco)

SUN Hong-mei~1,HUANG Quan~2,CONG bo~1 (1.The Institute of Special Economic Animal and Plant Sciences,Chinese Agricultural Academy of Sciences,Jilin 132109,China; 2.School of Animal Science and Technology,Jilin Agriculture University,Changchun 130118,China)  
The quantity of immune cells involving in phagocytosis,the serum hemolysin level and the activities of serum lysozyme,and superoxide dismutase(SOD) were determined 0,6,12,18,24 d,and 30 d after starvation and 18 d after refeeding in yellow catfish(Pelteobagrus fulvidraco) weighing 100-150 g per individual.The results showed that the serum quantity of immune cells and the lysozyme activity increased slightly 6 days after starvation while the activity of serum SOD and the hemolysin level decreased slightly without significant difference(P0.05).After a long period of starvation,however,the quantity of immune cells,the lysozyme activity,and the hemolysin level reduced significantly except the serum SOD activity in 18 day starvation.The four indexes increased significantly 18 days after refeeding.The yellow catfish starved for 6 d,12 d,and 18 d resumed to the values when starved for 0 d while the yellow catfish starved for 24 d did not resume to the normal indexes,indicating that a long starvation was harmful for the immunity of yellow catfish significantly.
【CateGory Index】: S917.4
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