Table 4.

Effect of the supplementation of dietary exogenous non-starch polysaccharidases on the ruminal fermentation characteristics of fattening sheep.

Items	Treatment 1				SEM	p-value 2
	CON	T1	T2	T3		Treat	Linear	Quadratic
Ruminal pH	6.56a	6.55a	6.59a	6.38b	0.007	0.04	0.025	0.007
NH3-N, mg/mL	6.96b	7.79b	10.50a	3.87c	0.540	<0.01	0.177	<0.01
MCP, mg/mL	153.54ab	124.55b	150.05ab	174.74a	7.75	0.148	0.205	0.093
Total VFA, mmol/L	97.05	100.43	96.04	98.40	1.70	0.843	1.000	0.981
Acetate mmol/L	48.07	49.65	50.10	47.67	0.92	0.777	0.906	0.580
Propionate mmol/L	41.13	42.29	37.42	42.88	1.10	0.344	0.919	0.696
Butyrate mmol/L	7.84	7.99	8.52	7.85	0.22	0.717	0.814	0.679
Acetate: Propionate ratio	1.17b	1.16b	1.37a	1.11b	0.04	0.067	0.985	0.315

VFA, volatile fatty acid.

¹Different supplementary levels (CON, control group; T1, 0.1% NSPases/kg DMI; T2, 0.3% NSPases/kg DMI; T3, 0.5% NSPases/kg DMI).

²Treat, Linear and Quadratic represent treat, linear and quadratic effects, respectively, of NSPase supplementation.

^a–cValues within a row with different superscripts differ significantly at p < 0.05.