Selenium enrichedBacillus subtilis yb-1114246 activated the TLR2–NF-κB1 signaling pathway to regulate chicken intestinal β-defensin 1 expression

B. subtilis yb-111246 was recognized by TLR2 in chicken intestine and present the signal to MyD88. The potential signaling pathway of SEBS was proposed to be TLR2–MyD88–NF-κB1, upregulated the expression of BD1.