16s rRNA sequencing of intestinal microflora in SPF chickens infected with H9N2 AIV and regulated by traditional Chinese medicine ageratum-liquid

The purpose of this study was to study the effect of H9N2 AIV infection on intestinal microorganisms of SPF chickens, to reveal the changes of intestinal microorganism composition and structure caused by H9N2 AIV infection, and to screen out the dominant intestinal microflora after H9N2 AIV infection. At the same time, Chinese herbal medicine ageratum-liquid was added to the H9N2 AIV infection group to reveal the effect of ageratum-liquid intervention on intestinal flora.