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Biological Chinese herbal feed additive for broiler chicken and preparation method thereof

The invention discloses a biological Chinese herbal feed additive for broiler chicken. The additive is prepared by microbial fermentation of active pharmaceutical ingredients namely Chinese herbal medicines, wherein the active pharmaceutical ingredients of the Chinese herbal medicines comprise the following components in parts by weight: 1-8 of leguminosae, 2-5 of dryopteris setosa, 0.5-4 of radix isatidis, 0.5-5 of radix polygoni multiflori, 1-6 of hawthorn, 1-4 of fructus ligustri Lucidi, 0.5-5 of folium artemisiae argyi, 1-5 of fructus hordei germinatus and 1-4 of radix glycyrrhizae. By utilizing the biological Chinese herbal feed additive, the average weight of the broiler chicken is obviously increased, and the feed conversion ratio is reduced; the immunoglobulin G (IgG) level and newcastle disease (ND) antibody level of broiler chicken blood serum are obviously improved; and the activities of glutathione peroxidase (GSH-PX) and superoxide dismutase of the broiler chicken blood serum are obviously improved, and the content of malondiadehyde (MDA) of leg muscle is greatly reduced. Experiments show that by utilizing the biological Chinese herbal feed additive, the production performance and chicken quality of the broiler chicken can be improved, and the antioxidant capability and immunity of an organism are increased.
Owner:HEBEI AGRICULTURAL UNIV.
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