Egg drop syndrome is a viral disease of birds, notably chickens, ducks, geese and swans. The phrase `egg drop` refers to the drop in egg production, which is how the disease is usually detected, clinical signs being unreliable. The disease results in thin-shelled or shell-less eggs being laid. ==Agent== The causal agent is Duck adenovirus 1, an .....
Found on
http://en.wikipedia.org/wiki/Egg_drop_syndrome
<syndrome> A disease of chickens caused by an adenovirus and characterised by production of soft-shelled and shell-less eggs in apparently healthy birds. ... (05 Mar 2000) ...
Found on
http://www.encyclo.co.uk/local/20973
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