Antibiotic Resistance Genes in Antibiotic-Free Chicken Farms

Antibiotics

Michael Dyall-Smith¹  Glenn Browning¹  Marc Marenda¹  Yuhong Liu¹  Helen Billman-Jacobe¹  Hang-Wei Hu² 

[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;School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC 3010, Australia;

关键词: poultry;    chicken;    manure;    microbiota;    resistome;   

DOI  :  10.3390/antibiotics9030120

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown