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在常规和没有抗生素的做法下培养的 brojlers 的肠道微生物组的特征

Estefanía Novoa Rama¹, Matthew Bailey², Sanjay Kumar³

¹Department of Food Science and Technology, University of Georgia, Athens, GA, USA.

Poultry science

|June 21, 2023

概括

微生物分析揭示了与传统方法相比,在没有抗生素 (NAE) 培养的的肠道细菌中的差异. 在NAE肉中,表现出明显的部和部微生物群,其变化受到年龄和运输的影响.

科学领域:

动物科学动物科学
微生物学微生物学
食品科学食品科学食品科学

背景情况:

消费者对无抗生素家禽的需求正在增加.
没有抗生素养的的肠道微生物组研究有限.
了解肉肠道微生物动态对于动物健康和食品安全至关重要.

研究的目的:

描述和比较在传统和从未使用抗生素 (NAE) 实践下养的肉的肠道微生物种群.
为了研究肠道微生物群在肉生长和运输后的时间顺序.
为了确定传统和NAE肉系统之间的微生物组成的差异.

主要方法:

在四个商业养殖场 (2传统, 2NAE) 收集肉的头皮和皮含量.
在不同的生长阶段和运输到加工设施后采样.
使用16S rRNA基因测序 (隐含) 进行微生物分析.

主要成果:

在两种系统中,随着时间的推移,Cecal微生物群从Escherichia/Enterococcus转移到Faecalibacterium/Bacteroides.
与传统肉相比,NAE肉表现出不同的细胞微生物群落,其多样性较低.
乳腺微生物群由乳酸菌占主导地位,在NAE肉中丰富度更高.
运输显著改变了阴茎微生物群,增加了Psychrobacter.
坎皮洛巴克特菌与Enorma呈阳性相关性,与沙门氏菌呈阴性相关性.

结论:

肉肠道微生物群的组成在传统和NAE生产系统之间存在显著差异.
年龄和运输是影响 brojler肠道微生物组动态的关键因素.
在肉中,NAE实践可能会导致肠道微生物的多样性较少,但其特异性较明显.

关键词:

抗生素抗生素是一种抗生素.传统的传统的传统.微生物组是一个微生物组.类家禽类家禽在生产生产生产生产生产生产.

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