Decreased egg production in turkeys experimentally infected with eastern equine encephalitis virus or Highlands J virus

Turkey breeder hens were experimentally infected with strains of eastern equine encephalitis (EEE) virus or Highlands J (HJ) virus previously isolated from turkey hens experiencing decreased egg production. Depression and inappetance were observed on day 1 postexposure (PE) in hens inoculated with e...

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Bibliographic Details
Published in:Avian diseases 1994-07, Vol.38 (3), p.563-571
Main Authors: Guy, J.S. (North Carolina State University, Raleigh, NC.), Barnes, H.J, Ficken, M.D, Smith, L.G, Emory, W.H, Wages, D.P
Format: Article
Language:English
Subjects:
ALPHAVIRUS
Alphavirus Infections - pathology
Alphavirus Infections - physiopathology
Alphavirus Infections - veterinary
Alphaviruses
Animals
DINDON
Eastern equine encephalomyelitis
Egg production
Eggs
Encephalitis Virus, Eastern Equine - isolation & purification
Encephalitis Virus, Eastern Equine - pathogenicity
Encephalomyelitis, Equine - pathology
Encephalomyelitis, Equine - physiopathology
Encephalomyelitis, Equine - veterinary
EXPERIMENTACION IN VIVO
EXPERIMENTATION IN VIVO
Female
Hens
INFECCION EXPERIMENTAL
INFECTION EXPERIMENTALE
Infections
Ovary - pathology
Oviposition
Ovum - pathology
PAVO
PERFORMANCE DE PONTE
Pheasants
Poultry Diseases - pathology
Poultry Diseases - physiopathology
Poultry Diseases - virology
PRODUCCION DE HUEVOS
PRODUCTION D'OEUFS
RENDIMIENTO EN LA POSTURA
SINTOMAS
SYMPTOME
Turkey hens
Turkeys
Turkeys - physiology
Turkeys - virology
Viruses
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Description
Summary:Turkey breeder hens were experimentally infected with strains of eastern equine encephalitis (EEE) virus or Highlands J (HJ) virus previously isolated from turkey hens experiencing decreased egg production. Depression and inappetance were observed on day 1 postexposure (PE) in hens inoculated with either EEE virus or HJ virus, and egg production fell in each virus-inoculated group from approximately 75% to less than 20% within 2-3 days PE. Egg production remained depressed (less than 20%) for 15 days in EEE-virus-inoculated hens and for 7 days in HJ virus-inoculated hens. EEE virus and HJ virus were recovered from various tissues on days 1-5 PE, and virus was detected in eggs laid on days 2-5 PE. The findings of this study confirm that EEE virus and HJ virus are potential causes of decreased egg production in turkey breeder hens
ISSN:0005-2086
1938-4351
DOI:10.2307/1592080