Replace your Lux meter with an LED light (Lux) meter or test your current Lux meter with an LED meter to see if there are differences in the readouts. For this reason, it is important to use uniforms consisting of the same colours for staff that work inside the houses. In addition, a bird’s perception of light and colour is much more intense than humans. These females have learned where the track is and can eat in the dark, giving them more time than their counterparts to consume feed. Do not keep the lights off too long when the feed has circulated because some of the females that are already positioned in front of the feeder tracks will tend to eat more. When feed distribution is done in the dark, timing and calculating the amount of time it takes to get the feed around the chain tracks are critical. Sensitivity of avian eyes to light and colourĪvian eyes adapt quicker to light and darkness than humans. Having pens in the house with different light intensities will affect the sexual uniformity of females and males at 22 weeks to 23 weeks of age. Good light distribution in rearing is very important to have all females and males on the same Lux pattern. During the 8-hour lights-on period, a light intensity of 1.5 to 2 Lux measured under the lamps should be achieved. To create female light sensitivity, rearing houses need to have light traps with light reduction factors > 3,000,000 to achieve true blackout of < 0.1 Lux. LEDs produce heat and, therefore, the design and size of the heat sink in relation to the power unit is important especially during hot weather. In general, linear dimmers with 1 V intervals work well. Choosing an LED which is dimmable and has a maximum output of at least 100 Lux gives one the capability to be dimmed to 70 Lux during the production period. However, if lamps are dimmed to 70% of total capacity, there is very low heat emission increasing the life expectancy of the bulbs. The design and size of the heat sink in relation to the power unit is important, especially during hot weather. LEDs also produce heat, and the cooler they run the longer they will last. Installing a dimming system will also have a major impact on the LED’s life span, especially during the production period. Furthermore, running lights at a lower intensity has a big impact on energy consumption. Therefore, on farms with dimmable LED units, it is very important that the dimmers are not adjusted without specific authorisation from the livestock manager.ĭimming ability is important in rearing to keep the birds calm. In these cases, management is concerned some staff members may change the settings, which may dramatically affect the light susceptibility (refractory) of the birds toward the end of the rearing period. Some farm managers prefer non-dimmable LED lamps. The introduction of dimmer units (dusk to dawn) have made it possible to work with low light intensity outputs of 1.5 to 2 Lux but still see well enough to manage the birds. LED lights have had a considerable impact on breeder management. Warm light tends to prevent floor eggs relative to cold light (6,000K). The general recommendation in rearing and production is 2,700K (warm light) with a dimming system. They are also easy to wash, clean, and disinfect, and have a high Ingress Protection value (IP related to the level of dust and humidity penetration). Advantages of LED lamps/tubesĬurrently, new light installations are primarily LED lamps/tubes or strings due to the low energy consumption compared with other lamps, the long life span (> 50,000 hrs), dimming ability, and adjustable colour output. However, compact fluorescent and LED lights can reduce costs by 63% and 73% over a 5-year period, respectively. Compared to incandescent lights, high-pressure sodium lights can reduce energy costs by 40% over a 5-year period. Over the last few years, LED light has proven to work as well as the traditional light sources to bring parent stock into production with the advantage of a much lower energy cost.
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