This study was conducted to investigate the effects of perilla seed extracts(PSE) on performance and immune function of finishing cattle.Nineteen Simmental crossbred steers with(376.7±37.0) kg of BW were divided into 2 groups,ten heads in control group,and nine heads in PSE group.Control group was fed the basal diet,and PSE group was fed the basal diet supplemented with 0.03% PSE.The results were showed as follows,1) dietary supplementation of PSE increased the average daily gain(ADG) and average daily dail...