Table 3.

Effect of bismuth subsalicylate and dietary sulfur level on DM, OM and fiber digestion in continuous culture

	Treatment1
	Low sulfur		High sulfur			P-value
Item, g/100 g	CON	BSS	CON	BSS	SEM2	BSS	Sulfur	B × S
DM, apparent	47.1	39.2	50.3	39.3	1.4	< 0.01	0.31	0.38
DM, true3	64.1	46.9	67.9	47.6	2.5	< 0.01	0.13	0.33
OM, apparent	37.5	26.9	41.4	28.2	1.8	< 0.01	0.13	0.46
OM, true3	52.8	34.1	57.2	35.9	2.7	< 0.01	0.13	0.33
NDF	19.3	27.5	24.4	30.0	4.5	0.15	0.41	0.77
ADF	32.1	35.0	36.7	38.2	2.9	0.47	0.21	0.81

¹Treatments were arranged in a 2 × 2 factorial design, with dietary sulfur at 0.12 (low sulfur) or 0.42 (high sulfur) % of diet DM, and bismuth subsalicylate at 0 (CON) and 0.5 (BSS) % of diet DM. High sulfur level was achieved by addition of sodium sulfate to the basal diet.

²Standard error of the mean, n = 4 observations per treatment.

³Corrected for microbial contribution.