34 34 Lighting Lighting is an important aspect of poultry production. Not only is it used to promote movement within systems stimulating sunrise and sunset, movement between different tiers and perching and nest box usage. It also plays a key part in maximizing production, reducing stress and helping regulate natural responses. There are many choices now available from incandescent lighting through to modern LED systems. Each bring with them their own benefits and drawbacks. Light placement should never be underestimated. Whichever light you have in your house it needs to be conducive to movement throughout your system so independent and dimmable controls are vital. Having a well positioned system providing even light distribution at bird level will eliminate dark corners and shadowing which can both lead to floor/system eggs and undesirable behaviour. LOHMANN › MANAGEMENT GUIDE › LIGHTING Incandescent light › An incandescent light source offering flexibility over light positioning. › The lights however are very inefficient as they produce more heat than light. › Can be prone to damage as not suited for a harsh environment. Compact fluorescent light › A robust light source often supplied as compact or Linear. › More energy efficient than Incandescent Light. › Contain mercury which will limit future availability. LED – Light Emitting Diode › An efficient lighting system often housed in waterproof and shatterproof housing making it more suitable to the poultry environment. › Long life span offering energy savings and high-performance levels. › Can be expensive and with lots of options in the market, not all are suitable for poultry. High Pressure Sodium › Further Improvements on energy efficiency, though often an expensive option with limited dimming capacity and reliance on regulatory ballasts. 100 90 80 70 60 50 40 30 20 10 0 380 395 410 425 440 455 470 485 500 515 530 545 560 575 590 605 620 635 665 680 695 710 725 740 755 770 Wavelength (nm) Relative Responese (%) Light spectrum Vision of Poultry
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