Table 1. Facilities and breeding status of open house of animal welfare approved farms of laying hens

Farm	Strain	Facility	Flock size (birds)	Shed size (m2/house)	Stock density (birds/m2)	Female: male	Nest
A	Hy-Line	Panel	19,950	8×41	6~7	17:1	Side, Manual
B	Hy-Line	Traditional	16,000	15×124	4~5	15:1	Side, Manual
C	Hy-Line	Panel	11,000	10×90	6~7	20:1	Center, Automatic
D	Hy-Line	Panel	20,000	12×90	4~5	20:1	Center, Automatic
E	Hy-Line	Panel	26,300	13×86	7~8	15:1	Center, Automatic
F	Hy-Line	Traditional	12,000	3.9×50.8	4~5	15:1	Side, Manual
G	Hy-Line	Traditional	9,100	12×55	4~5	15:1	Side, Manual
H	Hy-Line, Lohmann	Traditional	7,900	11×52	7~8	20:1	Side, Manual
I	Hy-Line	Panel	20,000	15×115	7~8	20:1	Side, Automatic
J	Hy-Line, Isa-Brown	Panel	24,000	15×60	7~8	15:1	Center, Automatic
K	Hy-Line	Traditional	4,000	-	7~8	15:1	Side, Manual
L	Hy-Line	Panel	6,500	-	5~6	15:1	Center, Manual