Probiotics as growth promoter and immunostimulator in striped murrel Channa striatus

Abstract

The antimicrobial activities of ethanol chloroform and acetone extracts of three plant species were studied The extracts of Asparagus racemosus Withania somnifera and Mucuna pruriens were tested in vitro against four fish pathogens by well diffusion method Aeromonas hydrophila Pseudomonas fluorescens Vibrio cholera and Klebsiella pneumoniae were used in the present investigation Acetone extracts of A racemosus W somnifera and M pruriens were active against A hydrophila Pfluorescens and K pneumonia The ethanol extract M pruriens showed various antibacterial Activities against the entire tested microorganism Acetone and chloroform extract of A racemosus and M pruriens showed minimum inhibitory zone The maximum inhibitory zone was exhibited in the ethanol extract of M pruriens against A hydrophila and chloroform extract of A racemosus showed higher inhibition against K pneumonia