Intestinal microbiota of layer hens and its association with egg quality and safety

文献类型： 外文期刊

第一作者： Dai, Dong

作者： Dai, Dong;Qi, Guang-hai;Wang, Jing;Qiu, Kai;Wu, Shu-geng

作者机构：

关键词： intestinal microbiota; microbial succession; short-chain fatty acids; egg quality; layer hen

期刊名称：POULTRY SCIENCE （ 影响因子：4.014； 五年影响因子：4.192 ）

ISSN： 0032-5791

年卷期： 2022 年 101 卷 9 期

页码：

收录情况： SCI

摘要： The intestinal microbiota has attracted tremendous attention in the field of the poultry industry due to its critical role in the modulation of nutrient utiliza-tion, immune system, and consequently the improvement of the host health and production performance. Accumu-lating evidence implies intestinal microbiota of laying hens is a potential mediator to improve the prevalent issues in terms of egg quality decline in the late phase of laying production. However, the regulatory effect of intes-tinal microbiota on egg quality in laying hens remains elu-sive, which requires consideration of microbial baseline composition and succession during their long lifespans. Notable, although Firmicutes, Bacteroidetes, and Proteo-bacteria form the vast majority of intestinal microbiota in layer hens, dynamic intestinal microbiota succession occurs throughout all laying periods. In addition to the direct effects on egg safety, intestinal microbiota and its metabolites such as short-chain fatty acids, bile acids, and tryptophan derivatives, are suggested to indirectly modu-late egg quality through the microbiota-gut-liver/brain-reproductive tract axis. These findings can extend our understanding of the crosstalk between intestinal micro -biota and the host to improve egg quality and safety. This paper reviews the compositions of intestinal microbiota in different physiological stages of laying hens and their effects on egg quality and proposes that intestinal micro -biota may become a potential target for modulating egg quality and safety by nutritional strategies in the future.

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