Avian Adenoviruses: Effect on Egg Production, Shell Quality, and Feed Consumption

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Abstract
Four avian adenovirus isolants (Indiana C, DPI-2, IBH-2 and B-3) were examined for pathogenicity in laying birds [chickens]. None affected shell quality, and only 1 (IBH-2) had even a minimal effect on egg production (faster decline). Of 3 isolants tested (Indiana C, DPI-2 and IBH-2), only IBH-2 caused feed intake to be reduced. No other clinical signs were observed during these experiments. Egg transmission, virus excretion and antibody production were found to mimic patterns reported for serotype-1 avian adenoviruses.

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