Effects of monochromatic lights on the growth performance, carcass characteristics, eyeball development, oxidation resistance, and cecal bacteria of Pekin ducks

文献类型： 外文期刊

第一作者： Hua, Dengke

作者： Hua, Dengke;Xin, Hairui;Zhao, Yiguang;Wang, Yue;Xiong, Benhai;Hua, Dengke;Xue, Fuguang

作者机构：

关键词： Duck; Light; Growth Performance; Oxidation Resistance; Eyeball; Cecal Bacteria

期刊名称：ANIMAL BIOSCIENCE

ISSN： 2765-0189

年卷期： 2021 年 34 卷 5 期

页码：

收录情况： SCI

摘要： Light has become a significant microclimate factor in the commercial poultry industry as a critical component of the housing environment. It influenced poultry production by affecting growth development, carcass characteristics, physiological functioning, welfare, behavior, and other parameters [1]. At present, artificial lighting is extensively used to modulate avian growth rate and reproduction. Such lighting is often provided by light-emitting diodes (LEDs), which are well known for their high energy efficiency and availability in differing peak wavelengths [2]. Poultry is sensitive to light. Information with regards to Objective: 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. Methods: 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. Results: 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 had the greatest 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. Conclusion: 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 did not show advantages on the performance of housing ducks, it turns out that the white light is the best light condition for grow-out ducks.

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