Bovine dermatophilosis has been identified as etiological agent of lower leg dermatitis among cattle in Kerala. Present work was undertaken to study the antibiotic sensitivity pattern of Dermatophilus congolensis isolates from cattle in Kerala. A total of 75 isolates of D. congolensis obtained during 2010-2011 were subjected to antibiogram studies using Muller-Hinton sheep blood agar. Out of 75 isolates, 74 isolates were sensitive to ciprofloxacin (98.7 per cent) and enrofloxacin (98.7 per cent) followed by gentamicin (97.3 per cent), tetracycline (94.7 per cent), ceftriaxone (84 per cent) and streptomycin (81.3 per cent). Seventy six percent of the isolates were found to be sensitive to chloramphenicol and 73.3 per cent to ampicillin, amoxycillin and amoxyclav. Only 53 isolates were sensitive to co-trimoxazole (70.7 per cent) and 31 isolates (41.3 per cent) to Penicillin. Present study provided useful informations regarding the in vitro antibiotic susceptibility of the isolates which in turn will help in selection of the most suitable antibiotics for the treatment.
Cattle,Dermatitis, Dermatophilus congolensis, antibiogram