The information below has been supplied by dairy marketers and other industry organizations. It has not been edited, verified or endorsed by Hoard’s Dairyman.

Bovine respiratory disease (BRD), commonly known as shipping fever, is one of the biggest health threats to a dairy operation. In fact, it’s the number one cause of mortality in weaned calves.1 Even calves that recover from BRD can suffer lasting effects, including lower weight gain, lower carcass quality and lower lifetime milk production.

When there’s stress, use Zactran® (gamithromycin).

Producers can manage at-risk animals by using ZACTRAN. In trials, it significantly reduced losses associated with BRD in stressed cattle.2 A single administration provides 10-day BRD treatment and control.3

Dr. David Festa, professional services veterinarian, Boehringer Ingelheim, explains how BRD occurs and what you can do to protect your herd and your bottom line.


1. Heifer Calf Health and Management Practices on U.S. Dairy Operations, 2007. USDA APHIS. Published January 2010.

2. Sifferman RL, Wolff WA, Holste JE, et al. Field efficacy evaluation of gamithromycin for treatment of bovine respiratory disease in cattle at feedlots. Intern J Appl Res Vet Med. 2011;9(2):171-180.

3. ZACTRAN product label.