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Egg cage structure
The laying hen equipment consists of a chicken cage, a trough, a drinking fountain and a cage. The chicken cage is made by cold-drawn steel wire welding, and is made by pickling and galvanizing. It is assembled by connecting the front net, the top net, the rear net and the side net with a clip.
The side net is used to divide the chicken cage into a number of compartments, ranging from 2 to 5 chickens per cage, with 3 to 4 common. For the convenience of manufacture, it is often made in one to two grids. The front net is dominated by vertical lines, with an appropriate number of horizontal lines, which is conducive to chicken feeding and drinking. The vertical line diameter is usually 3 mm, the interval is 55 mm to 60 mm, and the horizontal line diameter is usually 2 mm to 3 mm. The front net is provided with a cage door, and the lower part is provided with an inwardly inclined eggshell plate to prevent eggs in the chicken egg trough. The distance between the lower end of the eggshell and the bottom of the cage is 50 mm to 60 mm, called the spacing. The top mesh is made of steel wire having a diameter of 2.2 mm to 2.5 mm. The vertical line spacing can be larger and is provided with a certain horizontal line with a pitch of 50 mm to 60 mm. The rear and side nets are used to prevent chickens from running out and fighting with chickens in adjacent cages. Generally, the horizontal line is mainly, and the horizontal line interval is 25 mm to 30 mm, which is reinforced by a vertical line at a certain distance. The bottom net must be able to withstand the weight of the chicken, the chicken droppings that are leaked, and reduce the breakage rate of the eggs. Therefore its structural size is critical. The bottom net is usually composed of vertical and horizontal lines. The vertical lines are arranged along the inclined direction of the bottom of the cage, with a spacing of 20 mm to 25 mm. The lower line can be separated by an appropriate distance and has a horizontal line support, usually forming a grid of 15 mm to 50 mm. . The end of the bottom mesh extends forwardly from 140 mm to 200 mm outside the cage and is concavely shaped as an egg collecting trough. The bottom of the cage is thin and has a large elasticity, which can reduce the impact of the eggs when laying eggs, and the angle of inclination is convenient for the eggs to roll out, which is beneficial to reduce the egg breaking rate. The bottom line of the bottom of the cage has a diameter of 2 mm and a horizontal line of 2.5 mm.

egg cage
Egg cage type
Stepped chicken cages generally have 3 to 4 layers and are more common in some larger chicken farms. According to the width of the cage, several rows of chicken cages can be installed in the whole house, and there are 1 meter wide passages between the rows. In the stepped chicken cage, the chicken manure in each layer of the chicken cage can fall directly into the ditch of the ground, and the dung is as deep as 50 cm. The advantage of the stepped chicken cage is that the open cage area of ​​each layer of chicken cage is large, ventilation and light are sufficient, the defecation operation can be simplified, the equipment is simple, and the manual operation is convenient when the machine is faulty or power is cut off. The disadvantage is that the feed density is low, ranging from 10 to 20 per square meter.
In the stacked chicken cage group, the chicken cages in each layer overlap in the vertical direction, and the number of layers is generally 3 to 4 layers. A horizontal septic plate is placed at the bottom of each layer of the chicken cage for scraping with a squeegee, or an output belt can be used instead of the septic plate. The advantage of the stacked chicken cage is that the density of the stocking is high, generally 16 to 18 per square meter for the 3 layers and 18 to 20 per square meter for the 4 layers, so the capital investment of each chicken is lower and lower. The breadth of the chicken farm and the labor productivity of the breeders are also high. The disadvantage is that the ventilation in the vertical direction is poor, the ventilation requirements of the house are high, and the mechanical equipment is complicated. Multi-layer cages are more suitable for factory-based chickens in closed houses, especially in cold areas and hot dry areas.

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