从农场到屠宰:追踪家禽短食物链中的抗菌素耐药性
Andrea Laconi1, Roberta Tolosi1, Claudia Chirollo2
1Department of Comparative Biomedicine and Food Science, University of Padua, Viale dell'Università 16, 35020 Legnaro, Italy.
Antibiotics (Basel, Switzerland)
|June 25, 2025
概括
短暂的食品供应链可能并不像人们认为的那样安全. 在家禽尸体上发现了抗菌素耐药性基因 (ARG),这表明对消费者存在风险. 加强卫生是至关重要的.
科学领域:
- 微生物学 微生物学
- 食品安全 食品安全
- 兽医科学 兽医科学 兽医科学
背景情况:
- 简短的食品供应链通常被认为更安全,更可持续.
- 这种看法经常与有机和自由放牧的农业实践有关.
研究的目的:
- 研究抗微生物耐药性基因 (ARG) 在短时间的家禽食品供应链中的分布.
- 描述微生物群落的组成,并确定ARG污染的潜在来源.
主要方法:
- 使用16S rRNA测序和实时PCR分析便,屠宰场表面,体和尸体样本.
- 细菌负载的量化和特定的ARG的识别,包括那些高优先级的关键重要抗微生物药物 (HPCIAs).
主要成果:
- 尽管清洁和消毒,但各种耐药细菌仍然存在于屠宰场表面.
- 在尸体上检测到普遍的ARG (例如,qnrS,blaCMY2),使其对HPCIA产生抗性.
- 屠宰过程促进了ARG的传播;对某些基因 (mcr, blaNDM) 怀疑人为污染.
结论:
- 屠宰场的卫生,内脏和人员是ARG传播的关键因素.
- 在家禽中减少肠道ARG携带和改善卫生协议对于最大限度地降低消费者风险至关重要.
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