Technical Content

Control of Bovine Respiratory Disease, With and Without Co-Morbidity by Otitis Media, In Dairy Heifers Comparing Gamithromycin, Tulathromycin, or No Medication at a Commercial Development Facility 

To compare the control of bovine respiratory disease (BRD) in dairy heifers using Zactran® (gamithromycin), Draxxin® (tulathromycin) or no metaphylaxis in recently weaned dairy heifers.



Comparison of Zactran®(gamithromycin) and Zuprevo™ (tildipirosin) for metaphylaxis treatment of winter-placed feedlot calves for control of bovine respiratory disease. The Bovine Practitioner Vol. 51, NO.2. 

A randomized complete-block design trial was conducted in a commercial feedlot in Alberta, Canada using winter-placed heifer calves (n=4574; initial body weight 672 ± 43lbs) to evaluate the efficacy of metaphylactic treatment with Zactran® (gamithromycin) and Zuprevo™ (tildipirosin) for control of bovine respiratory disease.



Comparisons of Metaphylactic Treatments of Zactran® (gamithromycin) vs. Excede® (ceftiofur crystalline free acid) in High-Risk Stocker Calves 

Compare the health and performance parameters between newly received stocker calves treated metaphylactically with Zactran® (6 mg gamithromycin/kg subcutaneously) to calves treated with Excede® (6.6 mg ceftiofur/kg subcutaneously).