Bacterial diseases are responsible for heavy mortality in wild and cultured fish. The problems in the farms are usually tackled by preventing disease outbreaks or by treating the actual disease with drugs or chemicals. The use of antimicrobial agents has increased significantly in aquaculture practices. Bacterial infection of fish and fishery products may influence human health either directly by including infection in fishes. The present study were undertaken to isolate the fish pathogen, V. alginolyticus from the diseased Asian sea bass, Lates calcarifer. Seven herbal plants were selected based on their antibacterial characteristics. In dichloromethane and aqueous solvent extraction maximum inhibition zone were in Punica granatum (16.66 ± 0.05 & 24.70 ± 0.10 mm), ethyl acetate solvent extraction had more effective in Musa sapientum (12.33 ± 0.30mm), ethyl alcohol solvent extraction maximum inhibition zone were in Curcuma zedoaria (30.16 ± 0.20mm) at 500µg/disc concentration. Punica granatum were showing more effective in zone formation compare with other six herbal plant extracts.
Loading....