Figure 2.

Effects of ginsenoside Rg1 on immune organ index at day 29 (A) and day 52 (B) in broiler chickens (n = 6). CON, birds fed a basal diet; GS100, birds fed a basal diet supplemented with 100 mg/kg ginsenoside Rg1; GS200, birds fed a basal diet supplemented with 200 mg/kg ginsenoside Rg1; GS300, birds fed a basal diet supplemented with 300 mg/kg ginsenoside Rg1; ATB, a basal diet supplemented with 300 mg/kg chlortetracycline. Data were shown as means ± standard deviations. Mean value without the common letter on the data bar in each figure indicated that the difference was significant (P < 0.05).