Table 4.

Apparent metabolizable energy corrected to N equilibrium (AME_N), apparent pre-cecal digestibility (APD) of crude protein (CP), ether extract (EE) on 28th day, Ca, starch, EE apparent total tract digestibility (ATTD) on 35th day and neutral detergent fibre (NDF) total tract degradation in broiler chickens fed control diet (CON), control diet supplemented with emulsifier (EMU), control diet supplemented with enzyme (ENZ), control diet supplemented with emulsifier and enzyme (EMU+ENZ).

	AMEN, kcal/kg (MJ/kg)		APD at 35th day				ATTD of EE		Total tract NDF degradation
Treatment	at 28 d	at 35 d	CP	EE	Ca	Starch	28 d	35 d
CON	2,985 (12.5)	2,913 (12.2)	71.8b	85.1c	15.3b	93.3b	80.3b	90.7	40.7b
EMU	2,866 (12.0)	2,913 (12.2)	68.3c	90.7a	22.2ab	94.7b	82.6ab	92.2	34.9c
ENZ	3,009 (12.6)	2,890 (12.1)	70.7bc	84.9c	13.6b	94.8b	81.7b	93.6	35.1c
EMU + ENZ	3,105 (13.0)	2,842 (11.9)	79.7a	87.2b	29.1a	97.5a	84.8a	91.3	49.2a
SEM	0.163	0.151	0.9	0.4	1.734	0.463	0.5	0.9	1.2
P - value	0.126	0.879	< 0.001	< 0.001	0.002	0.006	0.003	0.661	< 0.001

^a–cMeans in a column not sharing a common letter are significantly different (P ≤ 0.05).