No mortality due to S. agalactiae infected Nile tilapia was observed in fish receiving fish feeds containing dried matter of A.paniculata aqueous extract at ratios (w/w) of 4:36, and 5:35 or in fish fed with oxtetracycline supplemented feed at a ratio of 1:149 (w/w) (Fig. 1). S. agalactiae was isolated from all dead fish, but was not detected in any of the survivors.