TARV was briefly an issue for turkey producers in the 1980s, but the condition disappeared as quickly as it had appeared. The virus reemerged in 2011, causing lameness, as well as swelling and increased fluid in one or both hocks, a turkey’s leg joint. This leads to substantial economic losses for producers through increased culling and mortality, increased condemnation rates, poor feed efficiency and low rates of weight gain.
When clinical signs of TARV reappeared in 2011, autogenous vaccines were developed to stave off the infection. However, many vaccines are now ineffective as the virus strain has evolved. University of Minnesota researchers are studying five groups of TARV-infected turkeys at different ages to determine when the turkeys are susceptible to the infection, how the virus spreads and if there is an age at which they are no longer susceptible to the virus. Ultimately, this information will inform vaccination strategies, clarify when young turkeys should be vaccinated and how pens should be arranged or cleaned to prevent TARV’s spread.
The US is expected to produce more than 240 million turkeys this year and Minnesota will lead the way by with a projected 40 million birds raised on 600 farms, creating over 30,000 jobs.
This research effort is funded through FFAR’s ROAR program, which rapidly funds research and outreach in response to emerging or unanticipated threats to the nation’s food supply or agricultural systems. FFAR contributed $49,000 to this $100,000 effort, with matching funds from Minnesota Turkey Research and Promotion Council and the University of Minnesota.
Foundation for Food & Agriculture Research
The Foundation for Food & Agriculture Research (FFAR) builds public-private partnerships to fund bold research addressing big food and agriculture challenges. FFAR was established in the 2014 Farm Bill to increase public agriculture research investments, fill knowledge gaps and complement USDA’s research agenda. FFAR’s model matches federal funding from Congress with private funding, delivering a powerful return on taxpayer investment. Through collaboration and partnerships, FFAR advances actionable science benefiting farmers, consumers and the environment.
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