The invention discloses a
plant extract additive as well as a preparation method and application thereof, the additive comprises the following
raw material components in percentage by
mass: 20%-70% of
pentacyclic triterpenoid active substances, 10%-50% of rosemary leaf
powder and 10%-30% of
eucommia ulmoides leaf extract, and the
plant extract additive is prepared by mixing the raw materials. The
plant extract additive has the advantages of being low in cost, rich in nutritional ingredients, high in content, green,
environmentally friendly and the like, can improve the
utilization rate of feed as a
feed additive in
livestock and poultry breeding, has the effects of resisting oxidation, enhancing the
immunity of
livestock and poultry organisms and protecting livers, can meet the requirements of
livestock and poultry for essential amino acids, and has a wide application prospect. And the
feed additive can completely replace the effect of
antibiotics to a certain extent, can well replace more traditional additives, and has high use value and good application prospects.