QUAIL BRONCHITIS

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Causative Agent(s)

Adenovirus (serotype 1)

Clinical Presentation and Epidemiology

Highly contagious, spreads rapidly and acutely fatal. Infectious for other domestic poultry, but generally asymptomatic. Immunity is long-lasting (maybe for life); recovered birds should be retained as breeders.

Transmission is probably by aerosol/inhalation. Do not introduce new birds without 30-day quarantine.

Clinical signs include dyspnoea, coughing, sneezing, rales, lacrimation, and conjunctivitis. Most signs are in quail < 6 weeks. Can also see tracheitis (trachea can completely fill with mucus), air sacculitis, mucoid enteritis, and gaseous distention of the intestines. Can see loose/watery droppings in sub acutely affected older birds. Often self-limiting but can see 100% mortality in chicks < 2 weeks (around 25% in those > 4 weeks).

Management and Treatment

No specific treatment but can increase environmental temperature and avoid multiple-age units. Strict isolation and sanitation.