These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Escherichia coli colonization of the trachea in poultry: comparison of virulent and avirulent strains in gnotoxenic chickens.
    Author: Dho M, Lafont JP.
    Journal: Avian Dis; 1982; 26(4):787-97. PubMed ID: 6760850.
    Abstract:
    In chickens, virulent Escherichia coli strains express their pathogenicity in the respiratory tract. A quantitative comparison of tracheal colonization by virulent and avirulent E. coli was carried out in gnotoxenic chickens after intestinal implantation. Two-week-old axenic chicks reared in isolators were inoculated per os with various associations of identified E. coli strains. No clinical sign of disease was observed in any of the chicks, despite the presence of virulent strains in all the intestines and most of the tracheas. The virulent organism reached greater population sizes in the trachea and feces of monocontaminated chicks and of chicks contaminated simultaneously with a virulent and an avirulent strain. In holoxenic chicks, identified virulent and avirulent strains were outnumbered by the E. coli population of the intestinal flora previously established and could not be recovered from the tracheas of most chicks.
    [Abstract] [Full Text] [Related] [New Search]