在家禽养殖场中抗生素耐药性的动态通过多因素分析
Dan Shen1, Chunmei Li1, Zhendong Guo2
1Research Centre for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China.
Poultry science
|December 18, 2024
概括
家禽养殖场的土壤和空气中的颗粒物 (PM) 是抗生素耐药性基因 (ARG) 的重要储库. 这些环境因素与料一起,在家禽养殖中ARG的扩散和传播中起着至关重要的作用.
科学领域:
- 环境微生物学环境微生物学
- 抗微生物耐药性 抗微生物耐药性
- 禽畜科学是一门学科.
背景情况:
- 家禽养殖环境是各种微生物群落的庇护所.
- 抗生素耐药性基因 (ARG) 是越来越严重的公共卫生问题.
- 了解不同环境载体中的ARG分布对于风险评估至关重要.
研究的目的:
- 调查在家禽养殖场环境中的微生物群落和ARG的分布和丰度.
- 确定与ARGs相关的关键环境载体和微生物种群.
- 探索在家禽环境中对ARG的潜在传播途径和贡献因素.
主要方法:
- 使用元基因组测序来分析微生物群落和ARG.
- 从各种环境部分收集样本,包括土壤,空气中的颗粒物 (PM),便,料和内脏器官.
- 进行了统计分析,以确定相关性并确定有意义的关联.
主要成果:
- 空气中的颗粒物 (PM) 和土壤表现出最高的微生物基因负载和ARG计数.
- 与环境样本相比,家禽内脏样本显示微生物多样性和ARG水平较低.
- 便和料中的蛋白质细菌被确定为主要的ARG载体,其主要抵抗机制是排泄和目标修改.
- 克拉米迪亚 spp. 的. 在内脏样本中,尽管丰度较低,但呈现出高比例的ARG.
- 不同的ARG之间的显著相关性表明合作传输.
- PM被确定为ARG传播的移动载体.
结论:
- 环境载体,特别是土壤和PM,是家禽养殖场中ARG的关键储存库.
- PM的移动性和ARG保留能力有助于其广泛传播.
- 在料中使用治疗性抗生素可能会推动动物微生物群中的ARG增殖.
- 改善农场管理实践是必要的,以减轻ARG的传播和减少公共卫生风险.
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