Day Two of World Pork Expo in Des Moines, Iowa. This morning's show is made possible by Merck Animal Health (drivenbyprevention.com). Our guest is Dr. Glynn Tonsor of Kansas State University.

<p>Day Two of World Pork Expo in Des Moines, Iowa. This morning's show is made possible by Merck Animal Health (drivenbyprevention.com). Our guest is Dr. Glynn Tonsor of Kansas State University.</p>

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