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Behavior preference and performance of female broilers under different yellow LED lighting intensities

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Paper number  131619449,  2013 Kansas City, Missouri, July 21 - July 24, 2013. (doi: @2013
Authors:   Jinming Pan, Minsi Lu, Wenbin Lin, Zhan Lu, Yue Yu, Mingli Zhang
Keywords:   Lighting intensity; LED; preference; poultry behavior; performance

Abstract. Light-emitting diodes (LED) lamps are showing high potentials to replace traditional incandescent lamps in broiler production facilities for their obvious advantages in energy efficiency and expected enhancement to production. Whereas the application of LED lamps is restricted because of the absence of basic theories about its unevenly distribution of lighting intensity and subsequent impacts on broilers. This study was conducted to study the effect of different yellow LED lighting intensities on behavior preference and performance characteristics of female broilers. Six pens were developed to provide three unevenly distributed lighting environments with respective maximum intensities of 90, 75 and 60 lx in replicates. Each pen consisted of four subzones according to the light intensity, including three subzones of LA (lighted by LED source) and one NA (non-lighting area). Chicks were free to eat, drink and stay at any subzone. While no significant difference was found in FCR, the body weight (BW), uniformity and growth ratio among three groups, although FCR of the group C was slightly lower. In each group, the birds had a significant (P<0.05) tendency to eat and drink in the lowest light intensity during the first 3 or 4 weeks, while the overall preference changed significantly (P<0.05) to the higher light intensity in the later period, even with obvious fluctuation within replicates. The water consumption was affected more by the light intensity than the feed consumption. The video data showed that the chicks spent significantly more time (38.3±1.0%, P<0.05) in NA than in LAs, especially during the daytime (49.5±8.2%, P<0.05). We can conclude that, young broilers tend to be in favor of eating and drinking in the low light intensities while older chicks prefer higher ones. Moreover, the difference of birds’ presence at non-lighting and lighting zones was significant, related to session of day. This study can provide a reference for the configuration of LED lights in the poultry production.

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