Table 3.

Performance of white laying hens fed different sources and levels of Zn, Mn, Cu, Fe, Se, and I from 78 to 98 weeks of age.

Treatments	ADFI, g	EP, %	EW, g	EM, g	FCR, g/g	FCR, g/dozen eggs
IM	105	73.6*	67.9*	50.0*	2.075*	1.671*
AACM70	105	76.7*	67.9	52.0	2.012	1.645
AACM50	104	78.6*	68.1	53.1*	1.967	1.607
AACM40	103	80.8*	69.1*	55.3*	1.868*	1.555*
MEAN	104	77.1	68.3	52.6	1.960	1.610
SEM	0.37	0.78	0.17	0.57	0.0161	0.0122
		P-values
Dunnett	0.154	0.022	0.026	0.004	0.001	0.023
Linear1	0.054	0.044	0.011	0.014	< 0.001	< 0.001
Quadratic1	0.674	0.801	0.275	0.605	0.403	0.722

ADFI = average daily feed intake; EP = egg production; FCR = feed conversion ratio for egg mass; FCRD = feed conversion for dozen eggs; SEM = standard error of the mean.

IM = 60, 60, 7, 40, 0.2, and 2 mg/kg of Zn, Mn, Cu, Fe, Se, and I, respectively;

AACM70 = 42.0, 42.0, 4.9, 28, 0.14, and 1.4 mg/kg of Zn, Mn, Cu, Fe, Se, and I, respectively;

AACM50 = 30, 30, 3.5, 20, 0.10, and 1 mg/kg of Zn, Mn, Cu, Fe, Se, and I, respectively;

AACM40 = 24, 24, 2.8, 16, 0.08, and 0.80 of Zn, Mn, Cu, Fe, Se, and I, respectively¹. Orthogonal polynomial contrast; *Within a column differ significantly (P < 0.05) according to Dunnett’s test, which compares AACM levels with the IM control group.