Table 1. Groupings and treatments of mice.

Group	Day 1–3	Day 4–6
Negative control	PS 1 mL/mouse	PS 0.02 mL/kg bw
PNS	PS 1 mL/mouse	PNS 200 mg/kg bw
PCV2 + VC	PCV2 1 mL/mouse	VC 100 mg/kg bw
PCV2	PCV2 1 mL/mouse	PS 0.02 mL/kg bw
PCV2 + PNS 50	PCV2 1 mL/mouse	PNS 50 mg/kg bw
PCV2 + PNS 100	PCV2 1 mL/mouse	PNS 100 mg/kg bw
PCV2 + PNS 200	PCV2 1 mL/mouse	PNS 200 mg/kg bw

PNS, Panax notoginseng saponins; PCV2, porcine circovirus type 2; VC, vitamin C; PS, physiological saline.