Epidemic spread of IncI1/pST113 plasmid carrying the Extended-Spectrum Beta-Lactamase (ESBL) blaCTX-M-8 gene in Escherichia coli of Brazilian cattle

•34/191 animals (17.8 %) from 15/22 farms (68.2 %) were positive for ESBL-producing E. coli.•The blaCTX-M-8 gene was the most frequent (62.5 %) gene from ESBL-producing E. coli.•CTX-M-8 was localized on the IncI1/pST113 plasmid in various E. coli backgrounds.•IncI1/pST113/blaCTX-M-8 plasmid was found associated to the human epidemic ST155 and ST648 clones.•First report from Brazilian cattle of blaSHV-2a, blaCTX-M-2 and blaCTX-M-15 genes.