oxytetracycline--anhydrous has been researched along with narasin* in 1 studies
1 other study(ies) available for oxytetracycline--anhydrous and narasin
| Article | Year |
|---|---|
Study of the effect of administration of narasin or antibiotics on in vivo selection of a narasin- and multidrug-resistant Enterococcus cecorum strain.
Enterococcus cecorum is a member of the normal poultry gut microbiota and an emerging poultry pathogen. Some strains are resistant to key antibiotics and coccidiostats. We evaluated the impact on chicken excretion and persistence of a multidrug-resistant E. cecorum of administering narasin or antibiotics. E. cecorum CIRMBP-1294 (Ec1294) is non-wild-type to many antimicrobials, including narasin, levofloxacin, oxytetracycline and glycopeptides, it has a low susceptibility to amoxicillin, and carries a chromosomal vanA operon. Six groups of 15 chicks each were orally inoculated with Ec1294 and two groups were left untreated. Amoxicillin, oxytetracycline or narasin were administered orally to one group each, either at the recommended dose for five days (amoxicillin, oxytetracycline) or continuously (narasin). Faecal samples were collected weekly and caecal samples were obtained from sacrificed birds on day 28. Ec1294 titres were evaluated by culture on vancomycin- and levofloxacin-supplemented media in 5 % CO Topics: Amoxicillin; Animals; Anti-Bacterial Agents; Chickens; Levofloxacin; Oxytetracycline; Vancomycin | 2023 |