TLR4 and Salmonella Infections: Therefore, the objective of the present study was to evaluate the effects of BP on Salmonella infection, the microbial population of ceca, intestinal morphology, histopathological changes of the liver, some blood biochemical parameters, and the expression of peroxisome proliferator-activated receptor γ (PPARγ), Toll-like receptor 4 (TLR4), and Interleukin 10 (IL-10) genes in the Salmonella challenged broiler chickens.