Related Experiment Video
Updated: Jul 6, 2026
15:43
Long Term Chronic Pseudomonas aeruginosa Airway Infection in Mice
Published on: March 17, 2014
24.0K
Associations Between Fine Particulate Matter-Associated Bacteria and Respiratory Tract Microbiota in Pigs
Kun Tian1,2, Jiaming Zhu1,2, Renli Qi1,2
1Chongqing Academy of Animal Sciences, Chongqing 402460, China.
Animals : an Open Access Journal From MDPI
|March 14, 2026
Summary
Airborne fine particulate matter (PM2.5) in piggeries carries bacterial pathogens, posing risks to pig respiratory health. Managing air quality is crucial for biosecurity and environmental health in swine farming.
Area of Science:
- Environmental microbiology
- Animal health
- Air quality science
Background:
- Pathogenic bacteria in fine particulate matter (PM2.5) threaten pig farm biosecurity.
- The role of PM2.5-associated bacteria in pig respiratory health is understudied.
Purpose of the Study:
- To investigate bacterial communities on PM2.5 and in pig respiratory tracts.
- To assess the link between airborne PM2.5 and pig respiratory microbiome.
Main Methods:
- High-throughput sequencing of bacterial communities.
- Measurement of airborne pollutants (PM2.5, PM10, NH3, TVOCs, H2S).
- Analysis of bacterial communities in PM2.5, upper respiratory tract (URT), and lower respiratory tract (LRT).
Main Results:
- Higher concentrations of PM2.5 and pollutants inside piggeries.
- PM2.5-associated bacterial composition resembles URT microbiota more than LRT.
- 140 core potential bacterial pathogens identified in both PM2.5 and respiratory tracts.
Conclusions:
- PM2.5 acts as a potential vector for respiratory pathogens in piggeries.
- Air quality management is vital for pig respiratory health and farm biosecurity.
More Related Videos
Related Concept Videos
01:29Microbiota of the Respiratory Tract
The human respiratory tract, comprising the upper and lower segments, serves as a critical interface with the external environment. The upper respiratory tract (URT)—including the nostrils, sinuses, pharynx, and oropharynx—is heavily colonized by microbes, while the lower respiratory tract (LRT), composed of the larynx, trachea, bronchi, and lungs, was long thought to be sterile. However, recent molecular studies have revealed that the lungs are not devoid of microbes but act more like...
01:14Atypical Pneumonia
Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...
01:29Pneumonia I: Introduction
Pneumonia is an infection of the lower respiratory tract that leads to inflammation of the lung parenchyma, often resulting in the accumulation of inflammatory exudate in the alveoli and airways. Unlike the watery, low-protein fluid exudate in pulmonary edema, the exudate in this case is a thick fluid rich in immune cells, proteins, and debris produced during infection and inflammation.This impairs gas exchange and can lead to consolidation of lung tissue. The infection may be caused by a...