Immunostimulating effect of levamisole on nonspecific immunity of African catfish (Clarias gariepinus) after immunosuppression induced by malathion [electronic resource].

Includes references.

One hundred and sixty African catfish. obtained from Abbassa fiSh farm were distrtbuted into four equal groups (40 each) in aerated glass aquaria (100 L capacity) and given balanced pellets at 2% of body weight twice daily. The fish were allowed 2 weeks for acclimatization. Gp. (1) was the control. Gps. (2-4) were kept in 0.01 ppm sublethal concentration of Malathion for one week. Gps. (3&4) were then given levamisole 2-hour bath at 2.5 and 5 mg/Liter respectively. Blood samples were collected from 5 fish (gps. 1-4) at 0. 7. 14 and 21 days after the application of levamisole to study nonspecifiC defense mechanisms (total and differential leukocytic count. macrophage chemotaxis, lymphocytic proliferation index, serum and mucus lysozymes and serum immunoelectrophoresis).

Summary in Arabic.

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