. 2019 Dec 19;21(1):31. doi: 10.3390/ijms21010031

Table 4.

Effects of dietary fiber composition in pregnant sow diets on the production of short-chain fatty acids in sow feces and piglet colonic contents.

Parameters ²	Treatments ¹				p-Value
Parameters ²	R1	R2	R3	R4	p-Value
Sow feces
Acetate	47.17 ± 2.73 ^a	42.56 ± 1.05 ^ab	36.12 ± 2.54 ^bc	31.97 ± 3.75 ^c	0.005
Propionate	18.34 ± 1.45 ^a	18.50 ± 1.22 ^a	17.09 ± 1.60 ^ab	12.87 ± 1.13 ^b	0.048
Butyrate	9.01 ± 0.65	7.52 ± 0.48	8.75 ± 2.19	6.09 ± 1.35	0.425
Total SCFAs ²	74.52 ± 4.66 ^a	68.59 ± 2.04 ^a	61.96 ± 2.10 ^ab	50.93 ± 6.59 ^b	0.008
Piglet colonic contents
Acetate	14.72 ± 1.62 ^a	12.78 ± 0.97 ^a	6.59 ± 1.09 ^b	4.14 ± 1.23 ^b	0.001
Propionate	0.62 ± 0.24	0.78 ± 0.20	0.30 ± 0.10	0.20 ± 0.02	0.082
Butyrate	1.76 ± 0.46 ^a	1.60 ± 0.32 ^a	0.59 ± 0.18 ^b	0.64 ± 0.26 ^b	0.031
Total SCFAs ²	17.10 ± 2.21 ^a	15.15 ± 0.87 ^a	7.47 ± 1.32 ^b	4.99 ± 1.51 ^b	0.001

¹ R1, R2, R3, and R4 were diets in which the ratios of insoluble to soluble fiber were 3.89, 5.59, 9.12, and 12.81, respectively. ² SCFAs, short-chain fatty acids. Values are mean ± standard error (n = 8 for sows, n = 6 for piglets). ^a–c Means with different superscripts within a row differ (p < 0.05).