色蛋显示出血和肉斑的高发病率,伴随着独特的微生物分布模式
Junfeng Wu1, Yiyuan Yan2, Jiahua Chen1
1State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing, China.
Frontiers in nutrition
|April 9, 2025
概括
棕色蛋的血和肉斑比白色蛋更常见. 它们的存在显著改变了卵子.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 动物科学动物科学
背景情况:
- 血和肉斑是公认的蛋质量缺陷.
- 与白色蛋相比,棕色蛋的这些斑点的频率更高.
- 这些斑点对蛋微生物组成的影响尚不清楚.
研究的目的:
- 调查棕和白蛋中血和肉斑的发生频率.
- 分析这些斑点与卵和蛋黄中的微生物群体之间的关系.
- 为了识别与血和肉斑存在相关的微生物生物标志物.
主要方法:
- 检查了罗德岛红色 (棕色) 和白色Leghorn (白色) 在七个年龄段的血液和肉点频率.
- 在正常和含有斑点的卵的卵白和蛋黄样本上进行了16S rRNA测序.
- 利用LEfSe和随机森林分析来识别微生物种类和生物标志物.
主要成果:
- 与白蛋 (1.37%) 相比,棕蛋的血和肉斑频率 (63.99%) 显著更高.
- 蛋白和蛋黄都不是无菌的; 蛋白质细菌是占主导地位的类.
- 在有斑点的卵 (RIR_CASE) 中,微生物的α多样性比正常的卵 (RIR_CON和WL_CON) 低.
- 贝塔多样性分析表明,血/肉斑,而不是品种,主要影响了微生物差异.
结论:
- 有血和肉斑的蛋在棕的中更常见.
- 这些斑点的存在与卵内独特且不那么多样化的微生物社区有关.
- 特定的微生物生物标志物,如Comamonas_F和Chryseobacterium,在有斑点的蛋中被确定.
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