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BRD Mystery Continues
Victoria G. Myers Progressive Farmer Senior Editor
Mon Aug 11, 2014 01:39 PM CDT

Whether it's called summer pneumonia or preweaning pneumonia, respiratory disease in beef calves is a leading cause of illness and death. Russ Daly, Extension veterinarian with South Dakota State University, said ongoing research into preweaning Bovine Respiratory Disease complex (BRD) is yielding clues about risk factors. But he added it remains difficult to pin down ways to prevent the disease.

The USDA's National Animal Health Monitoring System (NAHMS) reports BRD is responsible for 29% of all calf death losses in the U.S. The incidence of BRD in preweaned calves is 12%, with it peaking around the 120-day age mark. Organisms ...

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