[Objective] To compare effects of 3 kinds of Chinese herbal feed additive growth performance and physiological & biochemical indexes in fattening pigs( Berkshire × Meishan pig),and to screen the optimal formula of Chinese herbal feed additive. [Method]48 heads of Berkshire × Meishan crossbred pigs with he similar weight 40 kg were selected and randomly divided into control group,Chinese herb group I,group II and group Ⅲ,to study effects of the different chinese herbal feed additive on growth performance and...