The purpose of the experiment was to study the effects of Panax notoginseng stems and leaves extract on the growth performance,serum biochemical indexes,and intestinal health of weaned piglets.Twenty-four 21-day-old weaned piglets were randomly divided into three groups with eight replicates in each group and one piglet in each replicate.The control group was fed with a basal diet,while the low dose group and high dose group were fed with 0.2%and 0.4%of Panax notoginseng stems and leaves extract,respectively.The trial period was 21 days.The r...