Table 5.

Growth performance and jejunal digesta viscosity of nursery pigs fed with β-mannanase in experiment 2.

Item	β-mannanase, U1/kg			SEM	P value
	0	400	600		Linear	Quadratic
Body weight, kg
day 0	15.4	15.5	15.5	0.8	0.546	0.424
day 10	22.8	22.5	23.0	1.0	0.574	0.192
ADG, g/d	737	699	750	28	0.632	0.080
ADFI, g/d	1,162	1,105	1,132	39	0.507	0.295
G:F	0.64	0.64	0.67	0.02	0.192	0.383
Jejunal digesta viscosity, cP2	2.50	2.09	2.10	0.15	0.022	0.170

¹One unit of β-mannanase activity is defined as the amount of enzyme required to releases 1 μmol of mannose reducing sugars equivalents per minute from locust bean gum (1.0%) in sodium phosphate buffer (200 mM), pH 6.0 at 50 °C.

²cP: centipoise (1 cP = 1/100 dyne s/cm²).