在液体固体分离系统下,乳制品便环境中的微生物多样性
B Dharmaveer Shetty1, Pramod K Pandey1, Kelly Mai1,2
1Department of Population Health and Reproduction, School of Veterinary Medicine, University of California-Davis, Davis, CA, USA.
Environmental technology
|February 3, 2024
概括
乳制品便管理对微生物群落产生重大影响. 不同的分离系统,如哭泣墙 (WWSS) 和机械分离 (MSS) 改变了微生物景观,影响了动物和公共健康.
科学领域:
- 环境微生物学环境微生物学
- 农业科学 农业科学
- 公共卫生 公共卫生
背景情况:
- 乳制品便含有各种微生物,包括病原体,影响动物和公共健康.
- 了解肥料中的微生物群落动态对于管理环境和健康风险至关重要.
- 加利福尼亚州的奶牛农场通常使用有液体固体分离的冲洗系统进行便管理.
研究的目的:
- 评估便管理实践对乳制品便中的微生物群体组成的影响.
- 确定便管理的不同阶段,特别是分离系统,如何影响微生物种群.
- 为了比较流水墙分离系统 (WWSS) 和机械分离系统 (MSS) 所产生的微生物群落.
主要方法:
- 在WWSS,MSS和多级替代乳制品废水管理系统 (ADEMS) 的四个阶段中研究了微生物群落.
- 从乳制品便样本中提取基因组DNA.
- 使用NovoSeq Illumina下一代测序扩大了16S rRNA基因.
- 进行统计分析,包括相似性分析 (ANOSIM) 和多响应转换程序 (MRRP).
主要成果:
- 在WWSS和MSS之间的微生物群落中观察到显著的差异 (p <0.05).
- 在ADEMS中的肥管理阶段也显示出不同的微生物特征.
- 该研究提供了关于微生物群落因特定管理实践而发生的转移的定量数据.
结论:
- 肥料管理系统,特别是使用的分离技术 (WWSS与MSS),显著塑造了乳制品肥料中的微生物社区结构.
- 这些发现对于优化乳制品便管理来减轻环境和公共卫生风险具有实际意义.
- 进一步的研究可以在这些结果的基础上开发有针对性的战略,用于管理农业废物中的微生物种群.
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