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United States Department of Agriculture

Agricultural Research Service

Image Number D2860-1

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Image Number D2860-1

At ARS’s U.S. Meat Animal Research Center, ewes are bred to produce lambs with a gene that influences ovine progressive pneumonia virus (OPPV) infection. These lambs are naturally exposed to OPPV and monitored for infection throughout their lives.


Photo by Michael Heaton.

640 pixels wide: (d2860-1.jpg)

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Last Modified: 4/25/2013
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