And illumination effects on growth, development and production performance of laying hens
Laying hens are sensitive animals, its light and accept the system is different from the other animals, different light on hormone secretion, nutrients and other impacts. And this affects the growth and production of Rig Veda. Different light is mainly reflected in the Spectra k, light intensity and illumination are different. For visible light, the difference can be seen in the light of the spectrum of color. Foreign research shows that blue and green light promoting chicken growth; Orange, red Rooster's reproductive performance: red light can reduce and inhibit the pecking of chickens. But given the domestic culture patterns of different, complex environment, many farmed species, the actual situation, study abroad is to a large extent, not suitable for farming of laying hens, so according to the farming of laying hens in the country situation of filter for the spectrum is necessary. Appropriate of light strength can in layers of different growth period guide its made for production needs of activities, for example: strong light can stimulus layers eating water, and increased its activities volume, to enhanced layers physique, gang this in brood during often used strong of light strong; weak light can reduced layers activities volume, to reduced produced hot, and improve feed utilization, often was more of application in layers of Yu into period. In addition, certain light intensity is guaranteed to maintain high egg-laying rate necessary gang Su. Light time also referred to as photoperiod and light system, mainly in farming of laying hens a light time of the day during the growing season arrangements. Main laying light long maturity and production habits during the rearing of laying hens, if light is constantly on the rise. laying hens leads to sexual maturity earlier; during laying, if diminishing light, easily lead to laying down.
Second, the characteristics of different light sources
Traditional farming of laying hens bars of light blazing lights, fluorescent lamps. Menchi lamp high power consumption, very low luminous efficiency, countries have started out. Short service life of lamps, mercury-containing pollutants. There are big environmental risks. In recent years, new LED light-emitting diodes, as a kind of new light source, with low energy consumption and, photoelectric conversion efficiency in prison high, long life light parameters can be regulated, environmental effects and other features. The same power, the brightness of LED products than traditional lighting products such as incandescent lamps, energy saving lamps, power is 7 watts of LED products through the proper arrangement to reach light intensity requirements for laying hens brood. and energy-saving lamp often requires 20 Watts or higher power: the same excellent LED lighting requirements of two appearance than incandescent and energy saving lamps, sections 80% and 60%, respectively. At the same time. Life of LED products with far more than traditional lighting equipment, laboratory theoretical service life can be lO million hours.
Under the life of 25,000, 50,000 hours lamp life 1000 hours. Energy-saving lamps is 8,000 hours. National industrial system of laying hens and experimental study on Hebei hen industry experts indicated. laying hens brood rearing stage. use LED lights to increase flock uniformity. Amoy reduce material consumption and death rates. At the egg stage, use LED lights to reduce the rate of chickens died at Amoy. Egg chicken breeding process used LED light is safe and reliable. Layers of modern agricultural technology system innovation team, Hebei province, comprehensive test of breeding laying hens in high humidity and coastal areas from 2013 for the first time in Taiwan's demonstration of layer-specific LED lamp technology, model results in 3 years, and have been recognized by a growing number of laying hens farm.
Third, LED to the farming of laying hens require
(A) the appropriate spectrum
Existing research shows that the spectrum will have different effects on chicken. many spectra of the spectrum there are good for laying hens, there are part of the spectrum inhibit the growth and production performance of laying hens. Spectrum of unsuitable or even delay will cause the hens egg, especially development of modern LED lighting technology, spectral energy distribution to be strengthened, not layers I was d spectrum inhibition of maturation in strengthening. vulnerable to delay egg phenomenon. LED general lighting not all vendors on the market are suitable for laying hens need to select layers dedicated LED, is significant.
(B) water and dust proof
Laying House environment is complex, with characteristic of high dust and high humidity. . Hens LED products are waterproof and dustproof grade less prone to dust lamp into the water, light influence LED luminous efficiency. Its brightness decreased. To cause damage to the LED products, affecting production and cause losses. General lighting with LED lights on the market is open, with easy chicken disinfection water reduces life expectancy, not suitable for sheds, must use closed-end.
(C) the shape smooth, furrowed less
Furrow, fin-ordinary thermal structure of LED lighting products, but too many furrowed, fins attached to the accumulation of dust in feed, birdhouse in moist environments, fermentation of feed can breed bacteria and viruses, there is the risk of a pandemic. Birdhouse LED products under the premise of ensuring product thermal requirements. should as far as possible to ensure smooth shape. reduce the possibility of ash. Cooling structure for furrow, fin-LED lamps for general lighting does not fit in the laying House.
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