[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.5536/KJPS.2018.45.4.245

Effect of LED Light Colors on Egg Production, Egg Quality and Reproductive Hormone Concentrations of Plasma and Oviduct in Brown Laying Hens Housed on Floor

Kim, Hee Na (College of Animal Life Sciences, Kangwon National University)
Ko, Han Seo (College of Animal Life Sciences, Kangwon National University)
Jang, Hyun Soo (College of Animal Life Sciences, Kangwon National University)
Kang, Yu Hyun (College of Animal Life Sciences, Kangwon National University)
Seo, Jee Soo (College of Animal Life Sciences, Kangwon National University)
Kang, Hwan Ku (Poultry Research Institute, National Institute of Animal Science, RDA)
Ohh, Sang Jip (College of Animal Life Sciences, Kangwon National University)

Publication Information

Korean Journal of Poultry Science / v.45, no.4, 2018 , pp. 245-252 More about this Journal

Abstract

This study investigated the effect of LED light wavelength (color) on reproductive hormones and egg production of brown laying hens raised on floor. Red, blue, green and white colors of LED light were four treatments with four pens per treatment. One hundred forty four Hy-line brown laying hens (47 wks old) were allocated in a floor pen for six weeks trial. Egg production, egg quality, yolk cholesterol and hormones ( $17{\beta}$ -estradiol, progesterone) concentrations in plasma and oviduct were analyzed. Egg production of red group was higher (P<0.01) than that of green group. Haugh unit of eggs from red group was higher (P<0.01) than that of blue and green groups. Egg weight of green group was heavier (P<0.05) than that of red group. Shell of blue group was stronger (P<0.05) than that of red and white groups. Shell color of white group was browner (P<0.01) than that of blue and green groups. Yolk cholesterol of red group was higher (P<0.01) than that of others. Plasma $17{\beta}$ -estradiol of red group was higher (P<0.05) than that of others at $3^{rd}$ week, but that of white group was highest (P<0.05) at $6^{th}$ week. Oviduct progesterone of green group was higher (P<0.01) than that of others. The result showed that the LED colors affect the reproductive hormone concentrations, egg production, egg weight and egg quality. This study suggested that red LED would be the most appropriate color for floor raising brown laying hens to sustain the egg production when it begins to decline with aging.

Keywords

LED color; brown laying hens; floor; egg production; reproductive hormones;

Citations & Related Records

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