Adenovirus Mild Respiratory Disease in Laying Hens
Happenings / Clinical Signs
Adenovirus can be isolated from commercial flocks, even when exceptionally high levels of production or egg quality
A survey of records of virus isolations, clinical, and necropsy findings over a 20 years period, involving hundreds of adenovirus isolations, indicated no primary role for adenovirus in fowl respiratory disease.
Adenovirus can be isolated from commercial flocks, even when exceptional high levels of production and fertility exist, and adenovirus infections of SPF (Specific Pathogen Free) flocks in lay are often associated with little or no effect on either egg production or shell quality
- Causing Agents
- Viral Disease. Virus Adenovirus. Subgroup I aviadenoviruses.
- Affected Systems/Organs
- Infected birds, contaminated objects (clothing, footwear, equipment)
- Mainly Affects
- It may predispose infected birds to have other complications
- Good biosecurity and hygiene programs. Some vitamins and minerals may assist in alleviating respiratory symptoms.
- Suggested Actions
- Can be confirmed with clinical signs and gross lesions
- Can be dealt with in house
- Diagnosis should be confirmed with rapid assays and/or a certified laboratory
Impact on Egg quality
Impact on Liveability
Impact on Production
Overall Economic Impact
Y.M. Saif. 2008. Disease of Poultry. 12th Edition. page 259
David E. Swayne. 2013. Diseases of Poultry 13th Edition. page 297