Table 3.

Effect of dietary fiber on the concentration of short-chain fatty acids in feces and serum of piglets^a.

Item	Diet		SEM	P-value
	LF	HF
Acetate, μmoL/g
7 d	29.27	34.45	2.591	0.169
14 d	28.61	42.27	2.109	<0.001
21 d	26.34	50.48	2.616	<0.001
28 d	32.25	54.46	2.238	<0.001
Propionate, μmoL/g
7 d	5.40	10.40	0.789	<0.001
14 d	5.52	14.70	1.054	<0.001
21 d	6.38	14.17	1.166	<0.001
28 d	6.48	15.79	1.430	<0.001
Butyrate, μmoL/g
7 d	8.54	6.63	1.034	0.193
14 d	7.23	7.73	0.847	0.684
21 d	7.11	9.73	1.123	0.112
28 d	6.49	8.55	0.980	0.157
Valerate, μmoL/g
7 d	2.43	2.24	0.317	0.665
14 d	1.92	2.57	0.295	0.140
21 d	2.14	3.27	0.345	0.038
28 d	2.14	3.10	0.283	0.028
Total SCFAs, μmoL/g
7 d	45.64	53.71	3.695	0.135
14 d	43.28	67.27	3.133	<0.001
21 d	41.96	77.75	3.865	<0.001
28 d	47.36	81.91	3.867	<0.001
Serum SCFAs, μmoL/L
Acetate	47.69	53.13	1.12	0.00
Propionate	23.38	30.03	1.09	0.00
Butyrate	0.55	0.69	0.05	0.11
Valerate	3.94	4.71	0.27	0.06

^aData are means ± SEM, n = 18 in each group.