Table 6. Effects of dietary fiber sources supplementation in lactation diet on fecal gas and fiber level

	Treatment (%)1)				SEM	p-value
	Control	BP	BPPK	PK
Sow
NH3 (ppm)
Initial	7.50	7.50	7.50	7.50
NH3	7.60	7.20	7.40	7.40	0.142	0.83
H2S (ppm)
Initial	11.00	11.00	11.00	11.00
H2S	11.20	10.80	11.00	11.00	0.17	0.89
Fecal crude fiber (%)
Initial	11.77	11.77	11.77	11.77
Fecal crude fiber	11.80b	9.95a	10.38a	11.24b	0.19	0.01

Treatment: Control, corn-soybean meal (SBM)-DDGS based diet; BP, corn-soybean meal (SBM)-DDGS based diet with 3% of beet pulp; BPPK, corn-soybean meal (SBM)-DDGS based diet with 1.5% of beet pulp and 2% of palm kernel meal; PK, corn-soybean meal (SBM)-DDGS based diet with 4% of palm kernel meal.
Means with different superscripts in the same row significantly differ (p < 0.05). DDGS, distiller’s dried grains with solubles.