infection negatively affected cecal microbiota toward increasing pathogenicbacteria and decreasing microbial VFA production potentially by impairing both the adaptiveand innate immune system and by increasing the protein concentration in the cecal contentsof broilers (Figure 13). Hence, this study suggests that the supplementation of immunostimulatory agents (e.g., plant extract, probiotics, VFA, etc.) could potentially be used to maintain healthy microbiota in broilers infected with Eimeria tenella.