In conclusion, 10ng/mL and 1ng/mL Thymulin significantly enhanced the immunological function of chicken splenic lymphocyte, which was completed through the second messenger of cAMP, Ca2+, IP3 and PKC.

• 胸腺九肽通过cAMP、Ca2+、IP3和PKC第二信使途径发挥免疫调节作用。