34 34 Lighting Lighting is an important aspect of poultry production. Not only is it used to promote move- ment within systems stimulating sunrise and sunset, movement be- tween 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 ben- efits 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 dim- mable controls are vital. Having a well positioned system pro- viding even light distribution at bird level will eliminate dark corners and shadowing which can both lead to floor/system eggs and undesirable behaviour. LOHMANN TIERZUCHT › MANAGEMENT GUIDE › LIGHTING Incandescent light › An incandescent light source offer- ing flexibility over light positioning. › The lights however are very inef- ficient 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 sup- plied as compact or Linear. › More energy efficient than Incan- descent Light. › Contain mercury which will limit future availability. LED – Light Emitting Diode › An efficient lighting system often housed in waterproof and shatter- proof housing making it more suit- able 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 expen- sive option with limited dimming capacity and reliance on regula- tory ballasts. Vision of Poultry 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 LOHMANN TOOLBOX