Table 2. Facilities and breeding status of windowless 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 | 27,000 | 12×99 | 7~8 | 20:1 | Side, Automatic |
| B | Hy-Line | Panel | 17,700 | 13×84 | 6~7 | 20:1 | Side, Automatic |
| C | Hy-Line | Panel | 22,400 | 16×25 | 7~8 | 10:1 | Side, Automatic |
| D | Hy-Line | Panel | 32,000 | 12×92 | 7~8 | 17:1 | Side, Automatic |
| E | Hy-Line | Panel | 30,700 | 13×86 | 7~8 | 15:1 | Center, Automatic |
| F | Hy-Line | Panel | 18,000 | 13×90 | 7~8 | 17:1 | Center, Automatic |
| G | Hy-Line | Panel | 64,800 | - | 7~8 | 10:1 | Center, Automatic |