Fig. 3

Effect of Zn-Gly on intestinal inflammatory cytokines in ducks with DSS-induced intestinal inflammation. A–D The ET, IL-1β, IL-6 and TNF-α contents of jejunum in ducks by the ELISA method (n = 6). E–G The relative protein expression of IL-1β and TNF-α in ducks (n = 4). H–K Contents of anti-inflammatory factors and immunoglobulins in jejunum of meat ducks (n = 6). L and M Relative expression of immune barrier related genes in jejunum of meat ducks (n = 6). Mean ± SEM are shown. ^*P < 0.05