Table 3.

Concentrations of short-chain fatty acids (SCFAs) in the colonic digesta in pigs^a.

Items	M1	M3	M5	P-value
Total SCFA μmol/g digesta	71.39 ± 3.02	78.04 ± 3.21	70.33 ± 6.22	0.46
Acetate μmol/g digesta	33.65 ± 1.75	37.17 ± 1.90	33.99 ± 3.54	0.60
Propionate μmol/g digesta	26.83 ± 1.02	29.93 ± 1.68	25.85 ± 2.12	0.24
Butyrate μmol/g digesta	6.67 ± 0.47	6.88 ± 0.47	6.31 ± 0.71	0.78
Valerate μmol/g digesta	1.16 ± 0.17	0.95 ± 0.06	1.05 ± 0.16	0.58
Isovalerate μmol/g digesta	1.84 ± 0.10	1.78 ± 0.10	1.85 ± 0.19	0.94
Isobutyrate μmol/g digesta	1.25 ± 0.07	1.35 ± 0.06	1.28 ± 0.12	0.77

^aThe data were analyzed by one-way ANOVA followed by Duncan's t-tests to evaluate differences in feeding regimens, data are expressed as mean ± SEM, n = 8.

M1, one meal per day; M3, three meals per day; M5, five meals per day.