Table 7.

Effect of xylanase, protease and superdosing phytase on digesta transit time (min) of broilers at 21, 28, 35 and 42 days of age.¹

Treatment		21 days of age	28 days of age	35 days of age	42 days of age
CON		182	194	279	218
XYL		149	184	252	205
PRO		244	164	238	268
PHY		198	182	185	339
XYL + PRO		203	177	186	264
XYL + PHY		188	217	238	331
PRO + PHY		158	234	298	222
ALL		200	218	246	285
Std dev		33	34	44	52
XYL	+	185	199	231	271
	−	196	194	250	262
PRO	+	201a	198	242	260
	−	179b	194	239	273
SD PHY	+	186	213a	242	294a
	−	195	180b	239	239b
P-value
XYL		0.179	0.597	0.061	0.251
PRO		0.007	0.694	0.747	0.106
SD PHY		0.274	0.003	0.825	0.001
XYL × PRO		0.169	0.475	0.003	0.025
XYL × SD PHY		0.002	0.713	0.046	0.039
PRO × SD PHY		0.001	0.032	0.001	0.001
XYL × PRO × SD PHY		0.065	0.077	0.058	0.069

CON = control; XYL = xylanase; PRO = protease; PHY = phytase; SD PHY = superdosing phytase.

^a,b Means within the same column with different superscripts are different (P < 0.05).

¹Means represent 7 replicates per treatment, each replicate with 5 birds.