Let us continue to discuss the The method of converting laying hen houses to broiler breeder houses.
Lighting
There is a problem
The light intensity required by laying hens is low. Usually, the lamps in the laying hen house are widely spaced.
One 18-watt energy-saving lamp is arranged every 2 meters horizontally and every 3.5 meters vertically.
Therefore, the light intensity in the house is not uniform, especially in the In the second layer of brooding, the light intensity in the cage is seriously insufficient.
If the broiler breeder is raised according to the light intensity of the laying hens during the breeding period, it will have little effect, but it is not suitable in the laying period.
House lighting
Transformation method
One light line should be arranged in each aisle of the broiler breeder house.
Generally, a chicken house with a span of 12 meters needs 4 chicken cages, 5 aisles, and 5 rows of light lines; hang 1 light line every 2 meters on each light line.
The energy-saving lamps of the same height ensure that the distance between the front and rear, left and right lamps is 2 meters, so that the lighting in the house is relatively uniform, and there will be no large-area shadows.
Install 11-watt energy-saving lamps in the early brooding and laying period of broiler breeders, and install 3-watt energy-saving lamps in the breeding period, which can meet the light needs of broiler breeders.
Broiler house lighting
In addition, the lamp wire must be installed in a plastic tube, otherwise it will easily cause a short circuit and burn out the energy-saving lamp during disinfection.
Ventilation
There is a problem
Generally, the number of air inlets or the area of the laying hen house is small, the number of fans is small, and the wet curtain area is small.
These ventilation systems can still be used for broiler breeders in spring and autumn, but the laying hen house is usually not designed with minimum ventilation windows.
Once the broiler breeders are ventilated in winter or brooding, the cold air will blow directly to the chicken body through the door or air inlet, and the chickens are prone to cold stress.
Exaust fans
In addition, in hot summer, if the wet curtain area is insufficient, the fan power behind is not enough, and the wind speed in the house is too low, the ideal cooling effect will not be achieved, thus affecting the growth and production performance of broiler breeders.
Transformation method
First, close the gaps between the roof, doors, windows, and walls of the chicken house, and try to make the structure of the chicken house achieve the best thermal insulation effect.
Then further improve the ventilation system according to the requirements of the broiler breeder house, and calculate the correct ventilation volume, the number of fans and the area of the air inlet according to the actual situation of the house and the stock quantity;
The fan is required for minimum ventilation to ensure that the cold air is fully mixed with the hot air at the top of the house before descending during the lateral ventilation in winter, so as to prevent the cold air from blowing directly to the chickens.
In addition, increasing the area of large fans and wet curtains required in summer to maximize the wind speed in the aisle, so as to drive the wind speed in the cage, reduce the body temperature of the chickens, and meet the ventilation needs of the chickens in summer.
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