Combined with the results of this experiment, it suggests that one of the mechanisms by which taurine alleviates the inflammatory response in the lungs of FLHS laying hens is inhibiting the LPS/TLR4/NF-κB signaling pathway and down-regulating the release of pro-inflammatory cytokines, which in turn alleviates inflammatory lung injury in FLHS laying hens. The gene discussed is TLR4; the disease is medical procedure.