Human-Friendly Light-Emitting Diode Source Stimulates Broiler Growth

摘要: Previous study and our laboratory have reported that short-wavelength (blue green) light combination stimulate broiler growth. However, stimuli could negative effects on poultry husbandry workers. The present was conducted to evaluate the of human-friendly yellow LED light, which is acceptable humans close green We also aimed investigate potential quantitative relationship between wavelengths used for artificial illumination growth parameters in broilers. After hatching, 360 female chicks (“Meihuang” were evenly divided into six lighting treatment groups: white strips (400–700 nm, WL); red (620 RL); (580 YL); (514 GL); blue (455 BL); fluorescent FL). From 30 72 days age, broilers reared under YL GL heavier than treated with FL (P 0.05). Moreover, significantly improved feeding efficiency when compared BL at 45 60 age < In addition, we found an age-dependent effect spectra a 620 nm) live body weights wavelength be negatively related (R2 = 0.876) weight early stage development, whereas positively correlated 0.925) older chickens. Our results demonstrated (YL), friendly human, can applied production.