Table 1. Body weight gain, food intake, and food efficiency ratio in SD rats with loperamide-induced constipation

Parameter	Groups1)
	G1	G2	G3	G4	G5	G6
Constipation2)	–	+	+	+	+	+
Body weight gain (g/day)	8.0±0.9	7.3±1.1	6.9±1.4	7.7±1.6	7.7±0.8	6.6±1.4†
Food intake (g/day)	24.6±0.9	22.9±1.1	23.8±1.1	24.3±1.2	22.8±1.3	21.3±1.4
FER3)	0.33±0.04	0.32±0.07	0.29±0.07	0.32±0.08	0.34±0.05	0.31±0.09

G1, normal group; G2, loperamide-induced constipation group; G3, Bacillus subtilis IDCC 1101 and loperamide-induced constipation group; G4, Weizmannia coagulans IDCC 1201 and loperamide-induced constipation group; G5, Clostridium butyricum IDCC 1301 and loperamide-induced constipation group; G6, BIOVITA 3 and loperamide-induced constipation group<
(–): constipation not induced, (+): constipation induced.
Food efficiency ratio (FER) = body weight gain (g) / food intake (g).
p<0.05 vs. G1 by ANOVA test.
SD, Sprague-Dawley; ANOVA, an analysis of variance.