Research Note: Analysis of microbial diversity on the shell surface of eggs collected from geographically distinct farms in China
文献类型： 外文期刊
作者： Chen, Yan 1 ; Zhang, Qionglian 2 ; Liu, Wenbing 3 ; Xu, Wenlong 3 ; Wang, Jinqiu 1 ; Li, Zhihua 4 ; Geng, Fang 1 ;
作者机构： 1.Chengdu Univ, Inst Egg Sci & Technol, Sch Food & Biol Engn, Chengdu 610106, Peoples R China
2.Southwest Univ Sci & Technol, Mianyang 621010, Peoples R China
3.Fengji Food Grp Co Ltd, Mianyang 621603, Peoples R China
4.Sichuan Acad Agr Sci, Inst Agroprod Proc Sci & Technol, Chengdu 610066, Sichuan, Peoples R China
关键词： egg; microbial diversity; 16S rDNA; ITS
期刊名称：POULTRY SCIENCE （ 影响因子：3.8； 五年影响因子：4.1 ）
ISSN： 0032-5791
年卷期： 2024 年 103 卷 5 期
页码：
收录情况： SCI
摘要： Micro-organisms on the eggshell surface of affect the quality of the egg. Sometimes, these microbes even pose a serious threat to the health of the egg's consumer. Bacterial 16S rDNA and fungal internal transcribed spacer region were sequenced to analyze the microbial diversity on the shell surface of the eggs collected from 4 distinct regions of China: Guyuan (GY; 1.5 million hens), Langfang (LF; 0.1 million hens), Beihai (BH; 1.2 million hens), and Dongguan (DG; 0.2 million hens). The results showed a higher bacterial and fungal abundance on the eggs collected from the northern and southern China farms, respectively. The dominant bacterial phylum detected across all egg samples was Firmicutes. . In addition, the shell surfaces of the DG and LF samples harbored abundant levels of Proteobacteria. The dominant fungal phyla detected across all egg samples were Ascomycota and Basidiomycota. The bacterial compositions on eggshell surfaces differed significantly across all geographic regions, and the fungal composition differed significantly between samples collected from the southern and northern farms (P < 0.05). The abundance and composition of microbial colonies on the eggshell surface varied based on their geographical location (climate and environment) and farming scale (management). Our findings provide an important reference for optimizing the cleaning and disinfection methods for fresh eggs collected from different sources.
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