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Unevenly distributed LED light produces distinct behavioral preferences and production performance of broilers

International Journal of Agricultural and Biological Engineering 2019年第2期12卷 49-53页

作者： Chenghao Pan Minsi Lu Yingping Zhang Yue Yu Qiuyan Lu Yefeng Yang Jinming Pan College of Biosystems Engineering&Food Science Zhejiang UniversityHangzhou 310058China College of Optical and Electronic Technology China Jiliang UniversityHangzhou 310018China Sino-Agri Leading Biosciences Company LtdShanghai 200071China

LED has shown great advantages in poultry *** study focused on the behavioral preferences and production performance of chicken broilers reared under unevenly distributed yellow LED *** pens were divided into two groups adopting respective maximum light intensities(MLIs,60 lx and 30 lx).Because of different distances from the installation position of the LED pipe,each pen was distributed with unevenly distributed *** pen consisted of four subzones indicated by their light intensities-high intensity(HI),medium intensity(MI),low intensity(LI)and weak intensity(WI).Four subzones were the same size and provided with a feeder and a drinker,*** broilers moved freely across the four *** significant differences in body weight(BW),uniformity of final BW and feed conversion ratio(FCR)were observed between the two experimental ***,greater feed intake and water intake were found in HI than those in other *** drinking preference changed with age for four subzones and was more likely to appear at the later stage,despite substantial fluctuations within the *** feeding preference was more constant than the drinking preference and appeared mainly at the early and middle stages of this *** findings could provide implications for broiler production reared under unevenly distributed LED light condition.

关键词： LED unevenly distributed light behavioral preference broiler production performance light intensity artificial lighting animal welfare

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