TABLE 2.

Effects of dietary supplementation with herbal extract mixture (HEM) on the concentrations of short-chain fatty acid (SCFA) in the colon of weaned piglets^a.

	Dietary treatment
Item	CON	HEM	p-value
SCFAs concentrations in colon digesta, μmol/g
Acetate	3.33 ± 0.13	3.06 ± 0.10	0.133
Propionate	1.72 ± 0.11	1.46 ± 0.08	0.068
Butyrate	0.88 ± 0.11	0.79 ± 0.07	0.624
Isobutyrate	0.19 ± 0.01	0.20 ± 0.01	0.516
Valerate	0.22 ± 0.03	0.20 ± 0.02	0.512
Isovalerate	0.24 ± 0.03	0.26 ± 0.02	0.687
Total SCFAs	6.58 ± 0.34	5.98 ± 0.26	0.181

^aValues are expressed as mean ± SEM; n = 9. CON, basal diet; HEM, basal diet supplemented with 1,000 mg/kg herbal extract mixture.