Transmissible viral proventriculitis identified in broiler breeder and layer hens

Rosemary A. Marusak, Melissa A. West, James F. Davis, Oscar J. Fletcher, James S. Guy

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Transmissible viral proventriculitis (TVP) is a recognized cause of production losses in broiler chickens, but previously it has not been reported in broiler breeder and commercial layer hens. In this study, TVP was identified in broiler breeder and commercial layer hens, 9-20 wk of age, based on histopathologic detection of characteristic microscopic lesions. Microscopic lesions in proventriculi of affected hens consisted of glandular epithelial necrosis, ductal epithelial hyperplasia, replacement of glandular epithelium with ductal epithelium, and diffuse interstitial lymphoid infiltration. Additionally, chicken proventricular necrosis virus (CPNV), a virus previously identified as the etiology of TVP in broiler chickens, was detected in proventriculi of TVP-affected hens using a reverse transcriptase-polymerase chain reaction procedure. The findings identify TVP as a potential cause of production losses in broiler breeder and commercial layer hens and provide additional evidence for etiologic involvement in TVP by CPNV.

Original languageEnglish (US)
Pages (from-to)757-759
Number of pages3
JournalAvian diseases
Volume56
Issue number4
DOIs
StatePublished - Dec 2012
Externally publishedYes

Keywords

  • Chicken proventricular necrosis virus
  • Transmissible viral proventriculitis

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