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Adult Coturnix quail bronchitis.

M Chew-Lim

    Avian Diseases
    |April 1, 1980
    PubMed
    Summary

    Fowl adenovirus serotype 1 caused quail bronchitis in commercial egg-laying Japanese quail (Coturnix coturnix japonica) in Singapore. The infection led to respiratory distress and a 10-15% drop in egg production.

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    Area of Science:

    • Avian medicine
    • Virology
    • Poultry science

    Background:

    • Quail bronchitis is an economically significant respiratory disease in commercial quail.
    • Fowl adenovirus (FAdV) infections are prevalent in poultry, causing various clinical signs.
    • Adenovirus serotype 1 has been implicated in respiratory diseases in other avian species.

    Purpose of the Study:

    • To confirm the causative agent of respiratory illness and egg production decline in commercial quail flocks in Singapore.
    • To identify the specific serotype of fowl adenovirus involved.

    Main Methods:

    • Clinical examination of affected quail flocks.
    • Isolation and identification of the causative virus from affected birds.
    • Serotyping of the isolated fowl adenovirus.

    Main Results:

    • Fowl adenovirus serotype 1 was successfully isolated from two commercial quail flocks.
    • Affected birds exhibited respiratory distress, reduced egg numbers (10-15%), and abnormal eggshell quality (soft-shelled, white eggs).

    Conclusions:

    • Fowl adenovirus serotype 1 is confirmed as the cause of quail bronchitis in the affected Singaporean flocks.
    • This viral infection significantly impacts egg production and quality in commercial quail.
    • Early diagnosis and management strategies are crucial for mitigating economic losses in quail farming.

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