Table 7.

Egg and breast Se concentrations of hens over the 84 d feeding period (mg/kg).¹

Item	Blank control	Supplemental Se level (mg/kg of diet, SY)				SEM	P-value
		0.1	0.2	0.3	0.4		Se	Linear	Quadratic
Egg (28 d)	0.250e	0.303d	0.407c	0.459b	0.604a	0.024	<0.001	<0.001	<0.001
Egg (56 d)	0.238e	0.334d	0.449c	0.517b	0.674a	0.029	<0.001	<0.001	<0.001
Egg (84 d)	0.227e	0.369d	0.476c	0.571b	0.721a	0.032	<0.001	<0.001	<0.001
Breast (84 d)	0.060d	0.134c	0.159c	0.238b	0.284a	0.015	<0.001	<0.001	<0.001

^a–eMeans without a common superscripts with a row differ significantly (P < 0.05).

Abbreviations: Se, Selenium; SY, Se-enriched yeast.

¹Values are means of 6 replicates per dietary treatment.