固体主要驱动家禽便处理中的气味排放配置文件
Longhai Chen1, Meng Han2, Jiaojiao Xu1
1Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China.
Poultry science
|September 3, 2024
概括
处理家禽便的气味排放有很大差异,环形堆肥槽产生最强烈的气味. 细菌群落和pH等环境因素影响这些排放,为气味控制提供了洞察力.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 农业工程 农业工程
背景情况:
- 牲畜便的气味排放是一个重要的环境和健康问题.
- 关于普通家禽便处理方法的特定气味特征和影响因素的研究有限.
研究的目的:
- 调查和比较三种不同的家禽便处理方法的气味排放特征:宫外发酵床 (EFB),环状堆肥槽 (ACT) 和空气干燥室 (ADR).
- 确定关键的气味化合物,并探索它们与细菌群落和环境参数的关系.
主要方法:
- 分析了EFB,ACT和ADR治疗的气味度和形状.
- 气色谱-质谱法 (GC-MS) 用于识别挥发性有机化合物 (VOC).
- 通过使用16SrRNA基因测序来评估细菌群体的结构和功能,同时测量pH值,电导率和水分.
主要成果:
- 环状堆肥槽 (ACT) 呈现出最高的总气味度 (13444.00 ± 1269.92) 和最多的气味 (31).
- 关键的气味化合物包括甲基默卡,乙酸,乙甲,硫化,氨和亚克罗林.
- 在不同治疗方法中,细菌群体的差异很大,其中Firmicutes占主导地位. 特定的细菌,如Enterococcus和Oceanobacillus与甲基默卡普坦具有积极的相关性. 气味排放与Firmicutes的丰度,pH值,电导率和湿度有积极的联系.
结论:
- 禽类便处理方法显著影响气味排放概况和细菌群体组成.
- 了解微生物群落,环境因素和特定挥发性化合物之间的相互作用,对于制定有效的畜牧业气味管理策略至关重要.
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