97 Comparison of Tulathromycin and Gamithromycin as Metaphylactic Treatment on Growth Performance, Morbidity, and Treatment Cost in High-risk, Newly Received Beef Calves
Abstract:Metaphylactic treatments are used in cattle enterprises to mitigate bovine respiratory disease (BRD). Crossbred beef calves (n = 78; BW = 272 ± 25.8 kg) were randomly assigned 1 of 2 metaphylactic treatments. Upon arrival, calves were processed (ear tagged, vaccinated, dewormed, ear notched) and administered either 1.2 mL/50 kg BW of tulathromycin with a 7-d post-metaphylactic interval (PMI) or 2 mL/50 kg BW of gamithromycin with a 5-d PMI. Cattle were observed daily for signs of morbidity and a Clinical Attit… Show more
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