Microbial and antibiotic resistant constituents associated with biological aerosols and poultry litter within a commercial poultry house

The Science of the Total Environment
J P BrooksD M Miles

Abstract

Poultry are known to harbor antibiotic resistant and pathogenic bacteria, and as such poultry litter and poultry house air can be contaminated with these bacteria. However, the presence of antibiotic resistant bacteria in biological aerosols and litter is largely not understood. The purpose of this study was to determine the amount of aerosolized bacteria and endotoxin, particularly fecal indicators, staphylococci, and enterococci, associated with poultry house and outdoor air. Aerosol samples were collected at multiple locations on the farm and in the house. Antibiotic resistance was investigated using the Kirby Bauer method on selected isolates using twelve different antibiotics spanning both narrow to broad spectrums of effectiveness. Overall there was a cyclical increase in bacterial concentrations as flocks progressed from pre-flock to late-flock, with >2 orders magnitude lower concentration during pre-flock periods (no chickens), in both the litter and aerosol samples. The house environment provided for significantly concentrated bacterial and endotoxin levels. It was estimated that Staphylococcus bacteria accounted for at least 90% of cultured aerobic bacteria and culture-independent 16S rRNA analyses demonstrated that s...Continue Reading

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Citations

Aug 2, 2015·Current Environmental Health Reports·Joan A CaseyKeeve E Nachman
Sep 7, 2016·Zoonoses and Public Health·J H LeiblerE K Silbergeld
Oct 21, 2016·Microbial Biotechnology·Kate M O'BrienMatthew W Nonnenmann
Apr 23, 2019·Foodborne Pathogens and Disease·Muhammad Ali SyedTiffanie A Woodley
Jan 21, 2015·Journal of Environmental Quality·M B JenkinsD S Fisher
Jan 29, 2021·Frontiers in Microbiology·Luís Eduardo de Souza GazalRenata Katsuko Takayama Kobayashi
Jun 29, 2021·EFSA Journal·UNKNOWN EFSA Panel on Biological Hazards (BIOHAZ)Luisa Peixe
Mar 23, 2013·Environmental Science & Technology·Alison L LingTimothy M LaPara
Mar 6, 2018·Environmental Science & Technology·Ian L PepperCharles P Gerba
May 14, 2019·Environmental Science & Technology·Myrna M T de RooijInge M Wouters

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