Table 1. Body weight gain, food intake, and feed efficiency ratio of mice fed PSW and LPSW

Treatment1)	Body weight gain (g/day)	Food intake (g/day)	FER2)
CON	0.14±0.019	5.31±0.070	0.03±0.004
SCO	0.14±0.010	5.36±0.170	0.02±0.002
THA10	0.16±0.019	5.55±0.030	0.03±0.002
PSW10	0.15±0.008	5.62±0.035	0.03±0.002
PSW40	0.16±0.004	5.64±0.110	0.03±0.000
LPSW100	0.15±0.006	5.54±0.080	0.03±0.002
LPSW400	0.14±0.005	5.41±0.220	0.03±0.002

All values are mean±SE.
Control (CON); scopolamine (SCO, 1 mg/kg body weight (B.W.), intraperitoneally (i.p.); tetrahydroaminoacridine 10 [THA 10, tacrine; 10 mg/kg B.W. per oral (p.o.) with SCO (i.p.)]; pig skin water extracts [PSW 10, 10 mg/kg B.W. (p.o.) with SCO (i.p.)]; PSW 40 [40 mg/kg B.W. (p.o.) with SCO (i.p.)]; low molecular weight pig skin water extracts [LPSW 100, 100 mg/kg B.W. (p.o.) with SCO (i.p.)]; LPSW 400 [400 mg/kg B.W. (p.o.) with SCO (i.p.)].
FER, feed efficiency ratio (body weight gain/feed intake).