Table 2. Effect of supplemental exogenous emulsifier on growth performance in broilers

Item	CON	T1	T2	SE	p-value
Initial BW (10 d Broiler)	181.7	185.0	186.7	2.7	0.412
Final BW (29 d Broiler)	1,337.9c	1,382.7b	1,406.0a	5.0	0.005
Period 1 (d 0 to 7)
Weight gain (g)	348.3b	341.7b	374.2a	3.4	0.013
Feed intake (g)	496.7	460.8	500.0	12.9	0.203
Feed conversion ratio (g/g)	1.426b	1.349a	1.336a	0.032	0.025
Period 2 (d 8 to 14)
Weight gain (g)	460.8b	490.0a	471.7b	17.6	0.047
Feed intake (g)	718.3b	715.8b	755.0a	14.1	0.042
Feed conversion ratio (g/g)	1.559b	1.461a	1.601b	0.063	0.038
Period 3 (d 15 to 19)
Weight gain (g)	347.0	366.0	373.5	32.4	0.845
Feed intake (g)	523.3	534.7	551.3	21.2	0.926
Feed conversion ratio (g/g)	1.508	1.461	1.476	0.014	0.178
Overall period (d 0 to 19)
Weight gain (g)	1,156.2b	1,197.7a	1,219.3a	6.7	0.016
Feed intake (g)	1,738.3	1,711.3	1,806.3	24.0	0.136
Feed conversion ratio (g/g)	1.503a	1.429b	1.481ab	0.014	0.064

Each value is the mean value of 10 replicates (2 broilers/cage).
Means in the same row with different superscripts differ (p < 0.05).
CON, basal diet; T1, basal diet + 0.1% exogenous emulsifier; T2, basal diet + 0.2% exogenous emulsifier; SE, standard error.