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    Ornithobacterium rhinotracheale in nestling falcons (2010)

    Art
    Zeitschriftenartikel / wissenschaftlicher Beitrag
    Autoren
    Hafez, H. M.
    Lierz, M.
    Quelle
    Avian diseases; 54(1) — S. 161–163
    ISSN: 0005-2086
    Sprache
    Englisch
    Verweise
    Pubmed: 20408418
    Kontakt
    Institut für Geflügelkrankheiten

    Königsweg 63
    14163 Berlin
    Tel.+49 30 838 62676 Fax.+49 30 838 62690
    email:gefluegelkrankheiten@vetmed.fu-berlin

    Abstract / Zusammenfassung

    This case report describes a severe outbreak of airsacculitis caused by Ornithobacterium rhinotracheale (ORT) in a large falcon breeding farm. Forty young falcons hatched from artificially incubated hatching eggs and were raised by hand for 5-8 days after hatch. Afterwards they were placed back with the parents. Three days after being with the parents, the stock breeder observed that the young falcons stopped begging for food, their crops were empty, and approximately 20% of the young demonstrated respiratory distress. However, all adult falcons and the older young birds appeared to be healthy. Two young falcons died and were submitted for laboratory investigations. A postmortem examination on the two dead falcons and ten 4-wk-old cockerels and baby rats used as feed for the falcons was performed. ORT of serotype A was isolated from lungs and air sacs of both falcons. Samples of the cockerels were positive by ORT PCR. Samples of the baby rats were negative. All young falcons were treated with a long-acting tetracycline (100 mg/kg i.m. followed by a second injection 3 days later). The falcons improved within the next 2 days, and only one additional chick died. According to the available literature, this is the first report of ORT in falcons causing severe clinical disease and outbreak in a breeding farm.