Abstract

The microbiota of chicken litter remains largely unexplored, despite its leading role in the formation of volatile odorants and unpleasant odors. One of the main components of the odor is hydrogen sulfide, which may be formed as a result of microbial sulfate reduction. The composition of the microbial community of poultry plant waste was investigated. Samples were collected at the Mezheninovskaya large poultry farm, 15 km from the city of Tomsk, Russia. The 16S rRNA gene profiling revealed sulfate-reducing Desulfovibrionaceae in the microbial community. Both their share in the community and sulfide production increased upon incubation of the waste in the medium with sulfate and lactate. The possible sulfate sources in the waste are gypsum and the feed additives introduced as sulfates, such as lysine sulfate.

中文翻译：

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家禽养殖场废弃物的微生物群落及其在硫化氢生产中的作用

摘要

尽管鸡粪的微生物群在挥发性气味和难闻气味的形成中起主导作用，但它在很大程度上仍未被探索。气味的主要成分之一是硫化氢，它可能是微生物硫酸盐还原的结果。研究了家禽植物废物微生物群落的组成。样本是在距离俄罗斯托木斯克市 15 公里的 Mezheninovskaya 大型家禽养殖场收集的。16S rRNA 基因分析揭示了微生物群落中硫酸盐还原的脱硫弧菌科。它们在群落中的份额和硫化物产量都随着废物在含有硫酸盐和乳酸的培养基中的培养而增加。废物中可能的硫酸盐来源是石膏和作为硫酸盐引入的饲料添加剂，例如硫酸赖氨酸。