Comparison of florfenicol and tulathromycin for the treatment of undifferentiated fever in Alberta feedlot calves.

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Van Donkersgoed J, Berg J, Hendrick S

Comparison of florfenicol and tulathromycin for the treatment of undifferentiated fever in Alberta feedlot calves.

Vet Ther. 2008 Winter;9(4):275-81.

PubMed ID
19177332 [ View in PubMed
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Abstract

The purpose of this study was to compare the efficacy and cost-effectiveness of florfenicol versus tulathromycin for initial treatment of undifferentiated fever in fall-placed steer calves that received metaphylactic tilmicosin on arrival at the feedlot. No significant differences (P > .10) were observed in undifferentiated fever relapses or the crude case fatality rate. Calves treated with florfenicol had a lower case fatality rate (P = .04) for bovine respiratory disease and Histophilus disease than did calves treated with tulathromycin. The net economic advantage of florfenicol over tulathromycin (Can$17.70/treated animal) was based on differences in costs for the trial drug and calf replacement owing to bovine respiratory disease and Histophilus disease case fatality.

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