Publications by authors named "G Mourand"
Article Synopsis
- * A study was conducted on chickens to assess how oral administration of narasin or antibiotics (amoxicillin and oxytetracycline) affected the excretion and persistence of the multidrug-resistant strain Ec1294.
- * Results showed that while amoxicillin and narasin reduced Ec1294 levels in the feces, unexpectedly, oxytetracycline increased these levels, and no transfer of the resistant vanA gene to other bacteria was observed, suggesting further research is needed to understand these
Enterococcus cecorum, a commensal Gram-positive bacterium of the chicken gut, has emerged as a worldwide cause of lameness in poultry, particularly in fast-growing broilers. It is responsible for osteomyelitis, spondylitis, and femoral head necrosis, causing animal suffering, mortality, and antimicrobial use. Research on the antimicrobial resistance of E.
View Article and Find Full Text PDFColistin is frequently used for the control of post-weaning diarrhoea in pigs. Colistin resistance caused by plasmidic genes is a public health issue. We evaluated, in experimental animal facilities, whether free colistin or colistin-loaded on alginate nanoparticles (colistin/Alg NPs) could select a colistin-resistant Enterotoxigenic Escherichia coli.
View Article and Find Full Text PDFArticle Synopsis
- The study assessed the effects of two probiotic strains (ED1a and Nissle 1917) on the gut bacteria of pigs, specifically focusing on those carrying antibiotic resistance genes.
- Four sows and their piglets were treated with probiotics, while another group of sows and piglets did not receive any treatment, and both groups were inoculated with a resistant strain.
- Results revealed no significant reduction in the excretion of antibiotic-resistant bacteria from the treated pigs compared to the untreated ones, although some reductions in bacterial levels were observed post-mortem.
We explored the between-group and temporal variations in the intestinal populations of broilers under experimental conditions, taking both antimicrobial resistance and virulence into consideration. Four replicates of 45 commercial chicks were reared in four animal facilities. On their first day of life (Day 0), they were orally inoculated with two extended-spectrum-cephalosporin-resistant (ESCR) (2.
View Article and Find Full Text PDF