Management of broiler growth for ventilation
While maintaining the proper temperature of the house, good ventilation is extremely important. The life activities of broilers are inseparable from oxygen. Adequate oxygen can promote the metabolism of chickens, maintain the health of chickens, and increase feed conversion.
Good ventilation can vent moisture, ammonia, dust and excess heat to provide sufficient fresh air for the flock. Poor ventilation and high ammonia concentrations can cause serious losses in production. Table 9 shows the test results of the influence of ammonia gas on broiler production. Table 10 shows the air exchange volume per minute per kilogram body weight of broilers at different temperatures.
In actual production, many breeders often only pay attention to temperature while ignoring ventilation in the early stage of brooding, and in severe cases can cause increased broiler ascites in the middle and later stages. Poor ventilation during the second, third and fourth weeks may increase the incidence of chronic respiratory diseases and E. coli in chickens. In the mid and late broilers, the demand for oxygen is continuously increasing, and the amount of excrement is increasing. The amount of ventilation and ventilation must be increased on the basis of maintaining the appropriate temperature. At this time, ventilation and ventilation are the main means to maintain the normal environment.
In recent years, various high-tech traffic safety facilities and products have been favored by the industry in the highway safety protection projects implemented by the country. The wide application of these traffic safety facilities and products has played an important role in improving road safety and reducing traffic accidents. In various traffic safety facilities or products, solar road studs can clearly outline the outline and edges of the road in rain, fog and road bends, so as to induce the driver's line of sight, thereby eliminating road safety hazards. Solar road studs can play a very important role in delineating road contours in rainy and foggy weather and at corners, inducing the driver's sight and eliminating potential safety hazards.
During the day, solar panels absorb sunlight and convert solar energy into electrical energy, which is stored in energy storage devices (batteries or capacitors). At night, the electrical energy in the energy storage devices is automatically converted into light energy (controlled by photoelectric switches) and emitted by LEDs Bright light draws the outline of the road and induces the driver's sight. Solar Road Stud lights are a kind of protruding road signs, which are installed outside the yellow line on both sides of the road or at the ramp junction, used to outline the road, remind drivers to drive, and reduce accidents. This product uses monocrystalline silicon solar panels to charge high temperature resistant Ni-MH batteries without external power supply. The light-emitting unit uses high-quality, high-brightness LEDs from Taiwan Epistar chips. The product has a long service life, easy installation, environmental protection, stable performance, pressure resistance of more than 20 tons, and a fully charged battery that can work continuously for more than 200 hours, which is equivalent to 18 days in rainy days.
Road studs are suitable for installation on: roads with more than four lanes back and forth, but there is no separation zone in the middle and insufficient light at night; vehicle diversion points (around the triangular ground line); intersections/zebra crossings (deceleration prompt); railway ramps; sharp turns ; Toll station lane line; foggy areas (seaside, airport roads); accident-prone areas; highways and roads without street lights; urban sidewalks, park paths, etc., areas and road surfaces that need to beautify the night scene; guidance at elevated and tunnel entrances and exits Line position. Mainly play a warning role.
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Shenzhen Wide Way Optoelectronics Co., Ltd. , https://www.wdmtrafficlight.com