Ceratoconjuntivite infecciosa bovina: relato de caso

Abstract

Bovine infectious keratoconjunctivitis (BIC) is an infectious eye disease affecting young cattle, mostly caused by strains of Moraxella bovis, resulting in clinical signs such as conjunctivitis, hypopyon, and even perforation of the eyeball if left untreated, leading to vision loss. This paper describes a case of bovine keratoconjunctivitis in a 6-month-old Girolando bull from a farm experiencing an outbreak of the disease. The farm in question has a history of recurring outbreaks for 3 years and has employed autogenous vaccine management since then. The most prominent clinical signs in the animal were blepharospasm, corneal opacity, corneal ulcer, and hypopyon. The treatment instituted included systemic administration of Flunixin meglumine1 [Flumax® - 2.2 mg/kg, IV, SID, for 3 days], topical antibiotic eye drops with Tobramycin [Zobilar® - QID - 1 drop in each eye at a concentration of 0.15 mg], NSAIDs such as Ketorolac Tromethamine [Terolac® - 5 mg, QID, for 5 days – 1 drop in each eye at a concentration of 0.25 mg], autologous plasma, and subconjunctival applications of 4% gentamicin [Gentomicin® - 1 ml], achieving a good response to the treatment employed and maintaining the animal's vision intact in both eyeballs. Controlling intravascular coagulation (IBC) is of significant importance on cattle farms, as it is a major economic loss factor in livestock production. The disease causes vision impairment and pain, impacting commercial value and productivity in both milk and meat production. This study aims to describe a case of IBC, highlighting the clinical manifestations observed in the affected animal, as well as the strategies employed for the control, prevention, and treatment of the disease.