Astrovirus: a cause of an enteric disease in turkey ...



Title Astrovirus: a cause of an enteric disease in turkey poults
Author(s) D. L. Reynolds, Y. M. Saif
Journal Avian Diseases
Date 1986
Volume 30
Issue 4
Start page 728
End page 735
Abstract Virus particles of 30 nm diameter and star-shaped morphology were detected in the intestinal contents of turkey poults and were identified as astroviruses. Seventy-six intestinal samples from 65 commercial turkey flocks bwtween 6 and 35 days of age were evaluated for the presence of astroviruses by immune electron microscopy. Astroviruses were frequently detected in intestinal samples from poults that had enteritis and diarrhoea of undetermined aetiology. Astroviruses were geographically widespread (throughout the USA) and were present in poults from all six farms evaluated. Astroviruses were inoculated into specific-pathogen-free poults. Changes observed in the gastrointestinal tract were: dilated caeca containing yellowish frothy contents, gaseous fluid in the intestinal tract, and loss of tone of the intestinal tract (gut thinness). Poults experimentally inoculated with astrovirus gained significantly less body weight and absorbed significantly less D-xylose than uninoculated controls.

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