Effects of Supplemental Exogenous Emulsifier on Performance, Nutrient Metabolism, and Serum Lipid Profile in Broiler Chickens

Table 6

Intake (mg/kg diet DM), excretion (mg/kg excreta DM), and apparent retention coefficient of trace elements in broilers during the metabolism trial (day 41–45) supplemented with graded levels of emulsifie${\text{r}}^{\text{a}}$.

Response variables	Dietary treatment			SE	Diet effect (contrast $P$)
	Control	E1	E2		Linear
Intake
Copper	14.1	14.3	13.9	0.16	.56	.45
Iron	1573	1570	1555	5.89	.21	.6
Manganese	147	148	140	3.26	.39	.47
Zinc	109	109	108	0.79	.64	.78
Excretion
Copper	8.4	9.3	10.8	1.19	.43	.2
Iron	905.5	913.1	917.4	8.14	.56	.92
Manganese	106.3	102.4	100.6	1.55	.15	.76
Zinc	63.2	66.3	66.6	0.54	.02	.23
Absorption
Copper	0.291	0.367	0.213	0.04	.02	.06
Iron	0.383	0.303	0.36	0.03	.78	.36
Manganese	0.207	0.18	0.207	0.05	.99	.8
Zinc	0.375	0.272	0.332	0.04	.64	.31

${}_{}{}^{\text{a}}n=9$ per replicate (each replicate consisted of 5 birds during the metabolism trial).