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Immunostimulatory effects of levamisole and TFX-Polfa have been compared in carp (300 fish of a body weight 150-200 g) under field conditions. Just after being taken from the fishery the carps were exposed to a 1 h medicated bath (10 mg of levamisole/1) and then after 5 weeks they were fed levamisole at a dose of 5 mg/kg of body weight every second day for 2 weeks. After the fish were caught TFX-Polfa...
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