The material of the chicken coop:
Plastic materials and metal materials, and metal materials are generally cold-drawn galvanized mild steel.
The most common one on the market is the metal frame chicken cage, which is also the most common type of chicken cage introduced here.

Specifications of rack chicken cage:
According to the most common types of chicken cages, make a simple specification introduction:
1. Brooding cage: the total height of the cage is about 1.7 meters, the height of the cage feet is 10-15 cm, the length of each single cage is 70-100 cm, the height of the cage is 30-40 cm, and the depth of the cage is 40-50 cm. 3 to 4 layers of overlapping cages were used. The mesh is generally rectangular or square, the aperture of the bottom mesh is 1.25 cm and 1.25 cm, and the aperture of the side mesh and the top mesh is 2.5X2.5 cm. The cage door is set in the front, and the adjustable range of the cage door gap is 2 to 3 cm, and each cage can accommodate about 30 chicks.
2. Breeding chicken cage: the overall width is 1.6-1.7 meters, and the height is 1.7-1.8 meters. A single cage is 80 cm long, 40 cm high and 42 cm deep. The mesh at the bottom of the cage is 4 cm and 2 cm, and the rest of the mesh is 2.5 cm and 2.5 cm. The size of the cage door is 14 cm and 15 cm, and each single cage can accommodate 7 to 15 chickens. The combination form is mostly three-layer overlapping.
3. Laying hen cage: each single cage is 40 cm long, 45 cm deep, 45 cm high at the front, 38 cm high at the back, and the bottom slope of the cage is 6° to 8°. The egg collecting trough extending out of the cage is 12-16 cm. The cage door is opened in front, 21-24 cm wide; 40 cm high, with a gap of about 4.5 cm between the bottom edge and the bottom net. The pitch of the mesh at the bottom of the cage is 2.2 cm, and the weft spacing is 6 cm. The aperture range of the top, side, and rear nets varies greatly. Generally, the warp spacing of the mesh is 10-20 cm, and the weft spacing is 2.5-3 cm. Each single cage can raise 3-4 chickens. The common combination forms include stepped, Half-step and overlapping [2].

Advantages of rack cages:
1. The mesh is smooth to prevent chicken feet from being injured and infected. The separation net and bottom net are encrypted, which can effectively prevent the fatigue syndrome of laying hens. The mesh is galvanized to increase the service life by 6-7 times.
2. High-density breeding saves land, which is about 50% less than free-range breeding.
3. Centralized management saves energy and resources, reduces the incidence of poultry diseases, and the unique cage door design can effectively prevent the chickens from shaking their heads up and down when feeding and wasting feed.
4. It can be adjusted appropriately according to the size of the site, and an automatic drinking water system can be installed.