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  • different
  • Salmonella was isolated from different segments of oviduct of hens from both the groups, however pathology was not observed on microscopic examination. (frontiersin.org)
  • period
  • The hypothesis of this study was that the Salmonella Typhimurium can colonize the gut for a prolonged period of time and that horizontal infection through feces is the main route of egg contamination. (frontiersin.org)
  • This study investigated Salmonella shedding for up to 15 weeks p.i which is a longer period of time compared to previously published studies. (frontiersin.org)