Evaluation of continuous 4-day exposure to @entity3879 as a treatment for XXXX .

@entity15271 @entity26994 @entity2625 @entity277 @entity3880 @entity3879 @entity7136
The parasitic ciliate @entity26994 infests all species of freshwater fish and can cause severe economic losses in fish breeding. The most effective treatment, @entity15271 green, has been banned in Europe and North America for use in food fish production. @entity3879 ( @entity3880 ) was found to be toxic to @entity26994 theronts at low concentrations. @entity26994 -infested @entity7136 were exposed to 1 mg/l @entity3880 in a dynamic exposure by means of peristaltic pumps. Five days after @entity277 , gills, tail fins, and skin below the dorsal fin were observed microscopically for @entity26994 abundance. After @entity3880 exposure, @entity3880 -treated fish showed lower @entity277 of @entity26994 in all investigated tissues than the unexposed control fish. The @entity277 increased in the control group whereas the @entity277 in the @entity3880 -exposed groups significantly decreased (p = 0.0083, Bonferroni correction). The fish in the two exposure groups showed a slight reinfestation with @entity26994 . This might be caused by a @entity2625 degradation (hydrolysis) and/or reduction of the delivered @entity3880 concentration. Thus, @entity3880 concentrations were possibly too low to be effective on the released trophonts and/or the infective theronts. This hypothesis is corroborated by the fact that the @entity26994 in the gills, skin, and fins of the @entity3880 -exposed @entity7136 were in an early developmental stage.
