author(s)
Md. Idrish Raja Khan, Mukta Singh and Shongsir Joy Monsang

abstract
From the time immemorial, medicinal plants are being used for various purposes starting from as source of nutraceuticals to therapeutic agent due to the presence of phyto-bioactive/ phytochemicals compounds in them. The present study is designed for the evaluation of preventive efficacy of a bamboo (Melocanna baccifera), which is abundant in north-eastern part of India. Based on the earlier study bamboo leaves alcoholic extract (BLAL) at 0.1% were fed to Labeo rohita fingerling prior to the challenge against Aeromonas hydrophila. The study revealed that 0.1% BLAL has the efficiency in preventing bacterial infection in fish and thus it can be concluded as non-toxic phyto-prophylactic which can induce a nonspecific immune response and reduces the probabilities of bacterial infection in L. rohita fingerlings.