DOI: 10.36347/sjavs.2016.v03i03.012

Pages: 227-233

Infectious bovine keratoconjunctivitis (IBK) was prevalent in Al-Silate area, Khartoum State. The disease was encountered in 30 animals kept under poor hygienic and management conditions. All infected animals showed copious watery lacrimation, closure of the eyelids, photophobia and blepharospasm and some animals showed hyperemia and edema of the conjunctiva. Thirty isolates of virulent hemolytic and fimbiriated Moraxella bovis were obtained in pure culture on blood agar. The isolates were non-motile, catalase and oxidase positive and hydrolyzed Tween agar. Drug susceptibility testing showed that all of the 30 isolates of M. bovis were highly sensitive to Ciprofloxacin, moderately sensitive to Chloramphenicol and weakly sensitive to Tetracycline. For the rest antibiotics, varied susceptibilities ranging from high, moderate to weak. Five calves were successfully treated and recovered after a five-day treatment regimen with Ciprofloxacin and topical application of chloramphenicol eye drops. The owners of cattle were advised on the best measures that should be implemented to control IBK and others ocular diseases or at least reduce their prevalence by avoiding predisposing factors.