TABLE 1.

Significance of fixed effects (p-values).

Source	Estradiol-17ß a	Laying intensity b	Laying intensity c
		Cage housing	Floor housing
Housing condition (HC)	0.0019	—	—
Layer line (LL)	<0.0001	<0.0001	<0.0001
Week of age	<0.0001	<0.0001	<0.0001
HC * LL	0.8415	—	—
HC * week of age	0.1113	—	—
LL * week of age	<0.0001	0.0001	<0.0001
HC * LL * week of age	0.2422	—	—

^aModel (1).

^bModel (2).

^cModel (3).