| otitis media in preweaned holstein dairy calves in michigan due to mycoplasma bovis. | mycoplasma bovis was isolated from the tympanic bullae of dairy calves with an exudative otitis media. the history, clinical signs, gross and histologic lesions, and bacteriologic findings are described for 5 preweaned holstein calves with otitis media from a 600-cow dairy in michigan. clinical findings consisted of unilateral or bilateral ear droop, epiphora, head tilt, and recumbency in severely affected calves. postmortem examination revealed unilateral or bilateral fibrinosuppurative to case ... | 1997 | 9249163 |