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Detection of tetracycline-resistant and susceptible pasteurellaceae in the nasopharynx of loose group-housed calves.
oxytetracycline (OTC). A total of 43 strains belonging to the family Pasteurellaceae were isolated from 38 calves (62.3%) out of 13 herds (81.3%). The predominant organisms were Pasteurella multocida subsp. ...