Food production is dependent on weather and climate. Agriculture must always be planning and preparing for weather or responding to weather as it happens. Adaptation to weather and climate has occurred since farming started and will continue to occur as we move forward in the future. The rate of adaptation is the key to keep up with the rate …
Porcine Reproductive and Respiratory Syndrome (PRRS)
Authors: Jeff Zimmerman, Iowa State University; David Benfield, The Ohio State University; Jane Christopher-Hennings, South Dakota State University; Scott Dee, University of Minnesota; Greg Stevenson, Purdue University
Introduction
In 1987, a new reproductive and respiratory disease of pigs was recognized in the United States. A specific causal agent could not be identified at the time, so the syndrome was called …