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. 2013 Oct 9;4:297. doi: 10.3389/fmicb.2013.00297

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Copyright © Alexander, Cook, Klima, Topp and McAllister.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Genetic relatedness and resistance profiles of tulathromycin-resistant Mannheimia haemolytica collected from feedlot cattle. The dendrogram was created using UPGMA clustering of Dice coefficient values. Similarity matrix was based on band-matching analysis, optimization and tolerance settings of 1.0 and 1.5%, respectively. Resistance genotype was based on detection of resistance genes by PCR. Neo, neomycin; Oxy, oxytetracycline; Til, tilmicosin; Tul, tulathromycin, Amp, ampicillin.