出版社：Thai Society of Higher Eduction Institutes on Environment
摘要：Swine wastes are commonly used to maintain soil fertility in crop production; however, there are growing concerns over the impact on antibiotics contamination in agriculture that stores and transmits antibiotic resistance genes (ARGs). This study was conducted to investigate the dissemination of 6 ARGs in soil receiving swine wastes from the traditional and the commercial farms in Surin province, Thailand using polymerase chain reaction (PCR) method and analyze soil properties. The results were found that the soil receiving swine wastes, i.e. wastewater, sludge and manure, from the commercial farming causing higher contents of nitrogen (N), phosphorus (P) and organic matter (OM) when compared to the soil receiving manure from the traditional farming. These nutrients and OM increased soil fertility for microorganism growth, and then these microorganisms could create ARGs more than those soil with lower fertility. In this study, tetracycline resistance genes (tetO and tetM) were dominantly detected in all soil samples, and quinolone resistance gene (qnrB) was found in the soil receiving from the commercial farming having the history in using quinolone continuously. Besides, tetO and tetM were found in both of traditional and commercial farming, and ARGs from the soil receiving swine wastes from the commercial farming were found more than those from the soil receiving swing manure from the traditional farming. These results showed that ARGs occurred in soil samples were definitely found from both traditional and commercial farming; thus, agriculturalists should pay more attention and have awareness in using antibiotics for applying swine wastes and manure for agricultural purpose.
