Table 3. Facilities and breeding status of free-range house of animal welfare approved farms of laying hens

Farms	Strain	Facility	Flock size (birds)	Shed size (m2/house)	Stock density (birds/m2)	Female: male	Nest
A	Hy-Line	Traditional	4,000	11.5×72	4~5	17:1	Center, Automatic
B	Hy-Line	Traditional	6,900	12×55	4~5	15:1	Side, Automatic
C	Hy-Line	Traditional	8,800	8×50	6~7	20:1	Center, Manual
D	Hy-Line	Traditional	11,200	15.8×25	7~8	15:1	Side, Manual
E	Hy-Line	Panel	5,000	-	7~8	15:1	Automatic
F	Hy-Line	Panel	6,500	-	7~8	15:1	Automatic