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Article

Antibiotic Resistance Genes in Antibiotic-Free Chicken Farms

1
Asia-Pacific Centre for Animal Health, Department of Veterinary Biosciences, Faculty of Veterinary and Agricultural Sciences, Melbourne Veterinary School, The University of Melbourne, Parkville, VIC 3010, Australia
2
National Centre for Antimicrobial Stewardship, The Peter Doherty Institute, Elizabeth St Melbourne, VIC 3000, Australia
3
School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC 3010, Australia
*
Author to whom correspondence should be addressed.
Antibiotics 2020, 9(3), 120; https://doi.org/10.3390/antibiotics9030120
Received: 30 January 2020 / Revised: 10 March 2020 / Accepted: 10 March 2020 / Published: 13 March 2020
(This article belongs to the Special Issue Antibiotics and Environment)
Rising concern about the use of antibiotics in food production has resulted in many studies on the occurrence of antibiotic resistance genes (ARGs) in animal-associated bacterial communities. There are few baseline data on the abundance of ARGs on farms where chickens are intensively raised with little or no use of antibiotics. This study used a high-throughput quantitative PCR array to survey two antibiotic-free chicken farms for the occurrence of ARGs and mobile genetic elements known to enhance the spread of ARGs. No antibiotics had been used on the study farms for five years prior to this study. The results provide a baseline for the occurrence of resistance genes in the chicken production system without direct selective pressure. View Full-Text
Keywords: poultry; chicken; manure; microbiota; resistome poultry; chicken; manure; microbiota; resistome
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MDPI and ACS Style

Liu, Y.; Dyall-Smith, M.; Marenda, M.; Hu, H.-W.; Browning, G.; Billman-Jacobe, H. Antibiotic Resistance Genes in Antibiotic-Free Chicken Farms. Antibiotics 2020, 9, 120. https://doi.org/10.3390/antibiotics9030120

AMA Style

Liu Y, Dyall-Smith M, Marenda M, Hu H-W, Browning G, Billman-Jacobe H. Antibiotic Resistance Genes in Antibiotic-Free Chicken Farms. Antibiotics. 2020; 9(3):120. https://doi.org/10.3390/antibiotics9030120

Chicago/Turabian Style

Liu, Yuhong, Michael Dyall-Smith, Marc Marenda, Hang-Wei Hu, Glenn Browning, and Helen Billman-Jacobe. 2020. "Antibiotic Resistance Genes in Antibiotic-Free Chicken Farms" Antibiotics 9, no. 3: 120. https://doi.org/10.3390/antibiotics9030120

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