A Comparison of Monochromatic and Mixed LED Light Color on Performance, Bone Mineral Density, Meat and Blood Properties, and Immunity of Broiler Chicks

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  • Hassan Md. Rakibul
    Department of Animal Science, College of Agricultural Life and Science, Chonbuk National University, Republic of Korea
  • Sultana Shabiha
    Department of Animal Science, College of Agricultural Life and Science, Chonbuk National University, Republic of Korea
  • Choe Ho S.
    Department of Animal Biotechnology, College of Agricultural Life and Science, Chonbuk National University, Republic of Korea
  • Ryu Kyeong S.
    Department of Animal Science, College of Agricultural Life and Science, Chonbuk National University, Republic of Korea

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An experiment was conducted to investigate the effect of monochromatic and mixed light color on performance, bone, meat quality, blood properties and immunity of broiler chicks. In experiment 1, 1,200 Ross×Ross 1-day old chicks were equally allotted to the following 8 light treatments with 3 replications: red (R), yellow (Y) green (G), blue (B), mixed R×Y, Y×G, and G×B light colors. Fluorescent white light was the control. Experiment 2 considered similar treatments (6 treatments with 4 replications) except R and R×Y were not tested. Light (24 L: 0 D) and intensity (0.1 watts/m2) was maintained at the bird’s head level. Weight gain during weeks 2-3 increased in the G and G×B groups (P<0.05). Weight gain was higher (P<0.05) in the B and G×B treatments at week’s 4-5. Similar weight gains were noted in experiment 2. Monochromatic B and the G×B mixed lighting groups showed increased meat pH, decreased shear force, and L* in both experiments. Birds reared under B light had reduced (P<0.05) blood glucose in both experiments and reduced HDL and LDL levels in experiment 1. Circulating levels of IgG and IgA were increased with exposure to the monochromatic Y and G treatments at 21 days and to B light at 35 days of age (P<0.05). In conclusion, the mixed G×B lighting treatment enhanced growth performance and showed similar bone and blood properties and immunity of broiler chicks compared to those of monochromatic G or B light.

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