Effects of poor plumage conditions on egg production, antioxidant status and gene expression in laying hens

文献类型： 外文期刊

第一作者： Li, Junying

作者： Li, Junying;Ma, Ruiyu;Qi, Renrong;Wan, Yi;Liu, Wei;Li, Yan;Zhan, Kai;Zhang, Chengjie;Zhao, Tao

作者机构：

关键词： Laying hens; Egg quality; Gene expression; Performance; Plumage conditions

期刊名称：TROPICAL ANIMAL HEALTH AND PRODUCTION （ 影响因子：1.559； 五年影响因子：1.681 ）

ISSN： 0049-4747

年卷期： 2021 年 53 卷 1 期

页码：

收录情况： SCI

摘要： The objective of this study was to investigate the effects of poor plumage conditions on production performance, antioxidant status and gene expression in laying hens. Two hundred ten 54-week-old laying hens with similar body weights were assigned into two groups based on plumage conditions (the poor plumage conditions (PPC) group and the control group). All the birds had free access to water and crumbled feed, and received the same management in step cages. Compared with hens in the control group, the hens in the PPC group consumed more feed and produced lighter eggs (P <0.05). Hens in the PPC group showed lower serum concentrations of glutathione peroxidase and total antioxidant capacity and higher malondialdehyde content than those in the control group. The eggshell breaking strength was lower in the PPC group than in the control group (P <0.05). The eggshell shape index and yolk colour in the PPC group were significantly higher than those in the control group. The mRNA expression level of HTR2C in the neck skin and that of IL-2 in the liver and breast muscle were higher in the PPC group than in the control group (P <0.05). The results indicated that PPC may increase feed consumption and influence egg quality, antioxidant status and gene expression in laying hens.

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