AUTHOR=Wu Junfeng , Yan Yiyuan , Chen Jiahua , Li Junying , Li Guangqi , Wu Guiqin , Wang Bin , Zheng Gang , Yang Yuqin , Du Yushuang , Lian Ling TITLE=Brown-shell eggs shows high incidence of blood and meat spots accompanied by unique microbial distribution patterns JOURNAL=Frontiers in Nutrition VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2025.1561194 DOI=10.3389/fnut.2025.1561194 ISSN=2296-861X