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Showing posts from March, 2019

Turkey Reoviral Arthritis/Tenosynovitis -Part 3

Rob Porter DVM, PhD, Sunil Mor, DVM, PhD, and Sagar Goyal, DVM, PhD
University of Minnesota

Is TARV a seasonal problem?  The 719 submissions from March 2010 to May 2018 consisted of a total of 926 samples of tendon. There was no statistical evidence that TARV diagnostic submissions were seasonal, although positive submissions were higher in January, April, July, and December.
How is TARV transmitted?  Our studies have demonstrated that inoculated poults can transmit the infection laterally to pen mates, likely through manure. It is generally believed that TARV can be egg transmitted from breeders to offspring although no study is available that has tackled this issue. However, egg transmission of chicken arthritis reovirus (CARV) has been well documented and has been effectively controlled by vaccination of broiler breeder flocks. Our industry partners have shown that, in some instances, intramuscular vaccination with autogenous, killed TARV can reduce onset of lameness in offspring,…