Layer rearing equipment are divided into deep cages and shallow cages or light, medium and heavy egg cages depending on the feeding process, variety, size and weight of the laying hens. If the ratio of cage width to cage depth is less than 1 is a deep cage, the ratio of cage width to cage depth is greater than 1 is shallow cage, the former is about 1/5 more than the latter. The latter is more than the former. The egg rate is about 4% higher. The full-step layer cages are divided into 2, 3 and 4 layers. In order to increase the stocking density, the laying hens gradually switch to half-step cages or battery cages.
The use of half-step and laminated cages, in addition to chicken cages, cages, troughs and sinks, is also required to be equipped with a dung board, which can be divided into 3 to 8 layers.
There are several types of cages for cage laying hens: they can be divided into two types: ladder cages and overlapping cages. The ladder cages can be divided into 2, 3 and 4 step cages according to the number of layers to be raised.
It is characterized by staggered arrangement of upper and lower chicken cages, no overlap or a small overlap of less than 50 mm, and the chicken manure of each layer can fall directly into the ditch. This kind of cage is suitable for chickens in the family, and can also be assembled. It is equipped with feeding and feeding equipment, egg picking device and cleaning equipment to form mechanized chicken equipment of different scales. The ladder cages are arranged in the chicken house in different ways. They can be divided into one row, one walkway, two rows of two walkways, two rows of three walkways, three rows of four walkways and many other forms.
Chicken battery cages are often used for feeding eggs and breeding chickens. According to the different positions of the chicken cages, they can be divided into high-bed cages and ground cages. The high bed cage is to erect a platform of 1. 2 to 1.5 meters on the ground, and the chicken cage is erected on the platform. When farmers choose various types, they should cooperate with the building form, and consider the feeding stage, stocking density, defecation and ventilation facilities of the chicken.