摘要

    这项研究的重点是在小规模农场的猪粪堆肥过程中抗生素抗性基因（ARGs）及其潜在宿主细菌的变化。 八个目标ARGs平均增加了427％，其趋势是早期增加，后期减少，主要减少阶段出现在成熟阶段。 ARGs的丰富度主要受潜在宿主细菌群落演替的影响。 堆肥可以减少ARGs潜在宿主细菌和假单胞菌等病原体的丰度，并降低猪粪的环境风险。 N / C和S水平对大多数ARG的潜在宿主具有积极影响。 延长成熟期会抑制堆肥过程中潜在的ARGs宿主细菌的生长，因此会抑制ARGs的传播。

    This study was focused on the changes of antibiotic resistance genes (ARGs) and their potential host bacteria during the swine manure composting on sub-scale farms. Eight target ARGs increased 427% on average, with a trend of increase at early stage and decrease at later stage, and the main reduction stage appeared in maturity stage. The abundance of ARGs was mainly affected by the community succession of potential host bacteria. Composting could reduce the abundance of potential host bacteria of ARGs as well as pathogens such as Pseudomonas, and reduce the environmental risks of swine manure. N/C and S levels had a positive effect on the potential host of most ARGs. Prolonging the maturity period would inhibit the growth of potential host bacteria of ARGs during composting, therefore inhibiting the transmission of ARGs.

    https://www.sciencedirect.com/science/article/abs/pii/S0960852420314139