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DOI: https://doi.org/10.5713/ab.20.0657    [Accepted] Published online January 14, 2021.
The effect of different colored light emitting diode (LED) illumination on Brown Tsaiya Duck egg laying performance, egg qualities, blood hormone levels and behavior patterns
Chin-Hui Su1,2  , Chih-Hsiang Cheng2  , Jung-Hsin Lin2  , Hsiu-Chou Liu2  , Yen-Ting Yu1  , Chai-Ching Lin1  , Wei-Jung Chen1,* 
1Department of Biotechnology and Animal Science, National Ilan University, No.1, Sec. 1, Shennong Rd., Yilan City, Yilan County 260007, Taiwan
2Ilan Branch, Livestock Research Institute, No. 28-1, Jishui Rd., Wujie Township, Yilan County 268020, Taiwan
Correspondence:  Wei-Jung Chen, Tel: +886-3-931-7623, Fax: +886-3-935-4152, Email: wjchen@niu.edu.tw
Received: 17 September 2020   • Revised: 8 December 2020   • Accepted: 11 January 2021
Abstract
Objective
The objective of this experiment was to investigate the effects of different colors produced by LED on Brown Tsaiya duck.
Methods
A total of 144 female Brown Tsaiya ducks were randomly allocated into three individual cage rearing chambers with different LED illumination colors as treatments. Three different treatments were: (1) white color (2) blue color and (3) red color. The experiment periods were from ducks 21 to 49 weeks of age, determined traits included (1) egg laying performance (2) feed intake (3) egg shell breaking strength (4) egg shell thickness (5) egg Haugh unit (6) egg weight (7) serum Estradiol and Progesterone concentration and (8) behavior pattern.
Results
The results indicated that when compared with white and blue color, red color could stimulate ducks sexual maturation and raised the egg laying performance. The red light group was also observed the highest feed intake among three treatments. The blue treatment had the lowest egg shell breaking strength and the highest egg weight among three treatments, nevertheless, no significant difference was observed among three treatments on egg shell thickness and egg Haugh unit. The red light group had higher serum estradiol concentration than the white and blue groups, but no significant difference among treatments on the serum Progesterone concentration was found. The results of behavior pattern indicated that red light group showed more feeding and less resting behavior compared to the blue light group.
Conclusion
We found the potential of applying red light illumination in the indoor laying duck raising system with positive results on egg laying performance and acceptable egg weight, equivalent egg qualities compared to white and blue light.
Keywords: Brown Tsaiya Duck; Illumination; Light Emitting Diode
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