Bio-active components in medicinal plants: A mechanistic review of their effects on fish growth and physiological parameters – A Review

Abstract World population is increasing at a tremendous rate so the demand for animal-based protein. Aquaculture promising industry that has potential to supply high quality protein mankind with minimum environmental impact. In past decade, aquaculture practices have been shifting from extensive intensive culture. To achieve maximum production per unit area, stocking densities are maintained in aquaculture. If not managed properly, this may lead stress fish. Fish under condition show decreased growth, suppressed appetite, weakened immunity and increased susceptibility infections. Chemicals, vaccines antibiotics used treatment of diseased Use synthetic chemicals, sustainable because pathogens develop resistance against them they residues. Moreover, certain chemicals fish diseases safe humans therefore banned some countries. Plant parts their extracts traditional medicines cure many improve health mankind. industry, use plants derivatives feed status increasing. Several growth overall fish, provide protection by improving immune system while others increase appetite direct action on neuro-endocrine axis This review provides an depth up-to-date information about medicinal physiological possible mechanism action.