Vaccination with Astragalus and Ginseng Polysaccharides Improves Immune Response of Chickens against H5N1 Avian Influenza Virus

Figure 3

Effect of APS and GPS on gene expression of TNF-α. Superscripts with different letters (a–e) differ significantly (). Group 1 = 100 mg/kg APS + vaccine. Group 2 = 200 mg/kg APS + vaccine. Group 3 = 400 mg/kg APS + vaccine. Group 4 = 100 mg/kg GPS + vaccine. Group 5 = 200 mg/kg GPS + vaccine. Group 6 = 400 mg/kg GPS + vaccine. Group 7 = vaccine only. Group 8 = no vaccine, no GPS (blank control).