Table 5.

Effect of xylanase, protease and superdosing phytase on feed intake (FI), body weight gain (BWG), feed conversion ratio (FCR) and livability (Liv) of broilers at 42 days of age.¹

Treatment		FI, g	BWG, g	FCR, g/g	Liv, %
CON		4,467	2,506	1.783	95.71
XYL		4,400	2,513	1.751	96.86
PRO		4,393	2,508	1.752	97.43
PHY		4,474	2,509	1.784	98.00
XYL + PRO		4,430	2,512	1.764	97.14
XYL + PHY		4,479	2,549	1.758	97.43
PRO + PHY		4,495	2,534	1.774	96.57
ALL		4,483	2,563	1.749	95.14
Std dev		70	44	0.029	2.31
XYL	+	4,448	2,534	1.756b	96.64
	−	4,457	2,514	1.773a	96.93
PRO	+	4,450	2,529	1.760	96.57
	−	4,455	2,519	1.769	97.00
SD PHY	+	4,483a	2,539a	1.766	96.79
	−	4,423b	2,510b	1.763	96.79
P-value
XYL		0.603	0.071	0.011	0.630
PRO		0.774	0.373	0.191	0.488
SD PHY		0.001	0.011	0.575	0.985
XYL × PRO		0.209	0.756	0.102	0.349
XYL × SD PHY		0.752	0.185	0.241	0.248
PRO × SD PHY		0.325	0.366	0.996	0.024
XYL × PRO × SD PHY		0.090	0.857	0.123	0.824

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 48 birds per replicate pen and 7 replicates per treatment.