Distribution of antibiotic resistance genes and their pathogen hosts in duck farm environments in south-east coastal China

• DOI: 10.1007/s00253-023-12842-4
• Publication Date: 2024-01-15T10:02:11Z
• Authors: Kaidi Liu; Minge Wang; Yin Zhang; Chang Fang; Rongmin Zhang; Liangxing Fang; Jian Sun; Yahong Liu; Xiaoping Liao
• Keywords: Enterococcus faecium; Bacterial phyla

Abstract Livestock farms are major reservoirs of antibiotic resistance genes (ARGs) that discharged into the environment. However, abundance, diversity, and transmission ARGs in duck its impact on surrounding environments remain to be further explored. Therefore, characteristics their bacterial hosts from environment were investigated by using metagenomic sequencing. Eighteen ARG types which consist 823 subtypes identified majority conferred multidrug, tetracyclines, aminoglycosides, chloramphenicols, MLS, sulfonamides. The floR gene was most abundant subtype, followed sul 1, tet M, 2, L. abundance fecal sample significantly higher than soil water sample. Our results also lead a hypothesis Shandong province have been contaminated farm compared with other four provinces. PcoA showed composition samples similar, but there significant differences between feces samples. similar five Bacterial taxonomically assigned eight phyla dominated Proteobacteria , Firmicutes Bacteroidetes Actinobacteria . In addition, some human pathogens could enriched feces, including Enterococcus faecium Acinetobacter baumannii Staphylococcus aureus even serve as carrier ARGs. combined indicate comprehensive overview diversity ARGs, strong association community shift proposed, benefit effective measures improve safety antibiotics use livestock poultry farming. Key points • distribution widespread surroundings Human may vectors for