[Objective] The purpose of this paper is to evaluate the effect of Zhiqi fungal substance on their production performance and immunity in Macrobrachium nipponemse.[Method] Macrobrachium nipponemse were allotted into 2 groups randomly.The control group were fed with basal diet,the other were the treated groups fed with basal diet supplemented with 0.5% Zhiqifungal substance for 35 days,respectively.[Result] The results showed Zhiqi fungal substance can imporve the production of shrimpand and the survival rat...