Retrospective Analysis of Turkey Arthritis Reovirus Diagnostic Submissions in Minnesota

Maria Barrera, Pawan Kumar, Robert E. Porter, Sagar M. Goyal, Sunil K. Mor

Research output: Contribution to journalArticlepeer-review

Abstract

Turkey arthritis reovirus (TARV) causes tenosynovitis in turkeys, resulting in decreased profits for producers due to the increase in morbidity, mortality, and feed conversion ratio. There is limited information on TARV epidemiology, including the dynamics of diagnostic submissions to veterinary diagnostic laboratories. In this study, we retrospectively analyzed 719 cases of lameness in turkeys submitted to the Minnesota Veterinary Diagnostic Laboratory from March 2010 to May 2018. Almost all submissions were tendon pools, which were tested by virus isolation and/or real-time reverse transcription-polymerase chain reaction. Most of the submissions were from Minnesota. We found 52% of the submitted cases to be positive for TARV. The TARV-positive submissions increased considerably in the last few years. There was no statistical evidence that TARV diagnostic submissions were seasonal, although positive submissions were higher in January, April, July, and December. TARV-positive submissions also increased as flocks aged. In summary, we found that TARV submissions have increased in the last few years, have varied over time, and are correlated with age of the bird. This information is important guidance for conducting more studies to understand TARV infection dynamics.

Original languageEnglish (US)
Pages (from-to)681-685
Number of pages5
JournalAvian diseases
Volume63
Issue number4
DOIs
StatePublished - 2019

Bibliographical note

Funding Information:
This study was funded in part by a grant from the Rapid Agricultural Response Fund, University of Minnesota. We thank Wendy Wiese for technical assistance and Sally Noll and Kim VanderWaal for helpful discussions.

Publisher Copyright:
© 2019 American Association of Avian Pathologists. All rights reserved.

Keywords

  • arthritis
  • reovirus
  • retrospective study
  • turkey

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