笼养肉鸡舍内消毒前后空气中及笼内空气中的细菌群落。
Bacterial communities in PM and PM inside the cage broiler houses before and after disinfection.
作者信息
Li M, Zhang J, Zhang X, Tang J, Li M, Jiang L, Yu X, Zhu H
机构信息
Consultation Center of State Oceanic Administration, Building No. 3, Maguanying Jiayuan, Fengtai District, Beijing 100161, China.
Department of Microbiology and Immunology, College of Life Science, Ludong University, Zhifu District, Yantai 264025, China.
出版信息
Iran J Vet Res. 2019 Fall;20(4):277-282.
BACKGROUND
Air in broiler houses is contaminated with considerable amounts of microbial aerosols, which affects the health of humans and birds. Thorough cleaning and disinfecting should be carried out to reduce particulate concentrations and minimize airborne microorganisms.
AIMS
To evaluate the effects of cleaning and disinfecting measures on bacterial communities in particulate matter less than 2.5 μm (PM) and particulate matter between 2.5 and 10 μm (PM) inside broiler houses.
METHODS
A mixed disinfectant (containing aldehydes, alcohol, and quaternary ammonium salt) was sprayed to decontaminate broiler cage houses. amplicon sequencing was performed in this study to compare the bacterial communities in PM and PM before and after disinfection.
RESULTS
A variety of pathogens and opportunistic pathogens such as , , , , , and were detected, the quantities of which were noticeably reduced but not eradicated after disinfection. In addition, the impacts on several pathogens and opportunistic pathogens in PM were not significant, which may be due to bacterial resistance to this type of disinfectant or other reasons discussed in the present study.
CONCLUSION
Our results suggest that disinfection measures were effective in decontaminating air and further improving the feeding environment. This finding will help develop a reasonable disinfecting scheme for broiler houses.
背景
肉鸡舍空气中含有大量微生物气溶胶，影响人和禽类健康。应进行彻底清洁和消毒以降低颗粒物浓度并减少空气中的微生物。
目的
评估清洁和消毒措施对肉鸡舍内小于2.5微米颗粒物（PM）和2.5至10微米颗粒物（PM）中细菌群落的影响。
方法
喷洒一种混合消毒剂（含醛类、醇类和季铵盐）对肉鸡笼舍进行去污处理。本研究采用扩增子测序比较消毒前后PM和PM中的细菌群落。
结果
检测到多种病原体和机会致病菌，如、、、、、和，消毒后其数量明显减少但未根除。此外，对PM中几种病原体和机会致病菌的影响不显著，这可能是由于细菌对这类消毒剂产生抗性或本研究中讨论的其他原因。
结论
我们的结果表明，消毒措施对空气去污和进一步改善饲养环境有效。这一发现将有助于制定合理的肉鸡舍消毒方案。
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