Effects of frying oil and Houttuynia cordata thunb on xenobiotic-metabolizing enzyme system of rodents

Table 2 Body weight gain, food intake and feed efficiency of Sprague-Dawley rats fed with fresh/oxidized frying oil and 0%, 2% and 5% H. cordata thunb powder diets for 4 wk (mean±SD, n = 8).

Group	Body weight gain (g/wk)	Food intake (g/wk)	Feed efficiency (B.W gain/food intake)
F0	46.71±3.20	202.31±7.62	0.23±0.03
F20	44.85±2.82	206.22±7.82	0.22±0.04
F50	47.54±2.36	212.34±5.20	0.22±0.01
O0	35.62±2.101	198.14±5.47	0.18±0.02
O20	37.91±4.75	185.25±4.66	0.20±0.03
O50	38.54±4.55	188.72±3.44	0.20±0.02
ANOVA2
Dose	NS3	NS	NS
Oil	P<0.05	NS	NS
Dose×Oil	NS	NS	NS

¹Mean values significantly differ between the two oil groups (P<0.05).

²Analyzed by a two-way ANOVA. 3NS: No significance.