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Anim Biosci > Accepted Articles
DOI: https://doi.org/10.5713/ajas.20.0215    [Accepted] Published online June 24, 2020.
Effects of monochromatic lights on the growth performance, carcass characteristics, eyeball development, oxidation resistance, and cecal bacteria of Pekin ducks
Dengke Hua2  , Fuguang Xue3  , Hairui Xin1  , Yiguang Zhao1  , Yue Wang1  , Benhai Xiong2,* 
1State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
2Animal Nutrition Group, Department of Animal Sciences, Wageningen University & Research, Wageningen 6708WD, the Netherlands
3Jiangxi Province Key Laboratory of Animal Nutrition/Engineering Research Center of Feed Development, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, China
Correspondence:  Benhai Xiong, Tel: +86-10-62811680, Fax: +86-10-62811680, Email: xiongbenhai@caas.cn
Received: 7 April 2020   • Revised: 13 May 2020   • Accepted: 27 May 2020
Light is a significant component of housing environment in commercial poultry industry. This study was conducted to investigate whether Pekin ducks perform better under monochromatic lights than under white light with respect to their growth performance, carcass quality, eyeball development, oxidation resistance, and cecal bacterial communities.
A total of 320 one-day-old male Pekin ducklings were randomly distributed into five rooms with different light treatments, white, red, yellow, green, and blue light. Each room consisted of 4 replicated pens with 16 ducklings per pen.
Blue light significantly decreased fat deposition by decreasing abdominal fat. Long wavelength light, such as red, green, and yellow light, considerably increased the back-to-front eyeball diameter and the red light potentially enlarged the side-to-side eyeball diameter. Besides, the blue light had adverse effects on the oxidation resistance status in terms of increasing the product malonaldehyde of lipid oxidation and decreasing the plasma concentration of total superoxide dismutase. The phyla of Firmicutes performed the most abundance in the green and blue treatments, while Bacteroidetes in blue treatment was the least. The genus of Faecalibacterium was significantly lower under the red light.
The high risk of cecal health status and decreased anti-oxidation activity were observed under blue light. Red, yellow, and green light might increase the risk of oversized eyeball and cecal illness. Therefore, monochromatic lights compared to white light didn’t show advantages on the performance of housing ducks, it turns out that the white light is the best light condition for grow-out ducks.
Keywords: Duck; Light; Growth Performance; Oxidation Resistance; Eyeball; Cecal Bacteria

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