CD79A and inflammatory bowel disease: Meanwhile, we found that the supplementation with starter feeding, which acted as the grain feed in the ruminal diets, contributed more to regulate the immune function by influencing the gene expression involved in the intestinal immune network for IgA production, the NF-kappa B signaling pathway, inflammatory bowel disease (IBD), Th1 and Th2 cell differentiation, Th17 cell differentiation, the T cell receptor signaling pathway, the B cell receptor signaling pathway, and the natural killer cell–mediated cytotoxicity pathway (Figure 5C).