Redundancy in Anaerobic Digestion Microbiomes during Disturbances by the Antibiotic Monensin.

ABSTRACT: The antibiotic monensin is fed to dairy cows to increase milk production efficiency. A fraction of this monensin is excreted into the cow manure. Previous studies have found that cow manure containing monensin can negatively impact the performance of anaerobic digesters, especially upon first introduction. Few studies have examined whether the anaerobic digester microbiome can adapt to monensin during the operating time. Here, we conducted a long-term time series study of four lab-scale anaerobic digesters fed with cow manure. We examined changes in both the microbiome composition and function of the anaerobic digesters when subjected to the dairy antibiotic monensin. In our digesters, monensin was not rapidly degraded under anaerobic conditions. The two anaerobic digesters that were subje

SUBMITTER: Spirito CM 

PROVIDER: S-EPMC5930344 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature