Antibiotic Resistance Pattern of Pasteurella multocida of Avian Origin.

The present study documents the antibiotic resistance phenotypes among 134 strains of Pasteurella multocida isolated from chicken, ducks, turkeys, pigeons and geese in India. P. multocida type A was found to be predominant capsular type causing fowl cholera. The isolates were resistant to sulphadiazine (90.3%), tetracycline (32%), pefloxacin (20.9%), ciprofloxacin and spectinomycin (18.6%). The sensitivity pattern indicates that the gentamicin was most effective (98.5%), followed by amoxyclav (97.7%), ampicillin (93.3%) and ceftriaxone (94%). Sulfamethoxazole-trimethoprim was found to be effective against 83.5% of the isolates. Erythromycin and enrofloxacin exhibited intermediate sensitivity of 57% and 67.1%, respectively. Also 23.8% isolates were found to be multidrug resistant and was statistically significant (p<0.05). The emergence of multidrug resistant strains of P. multocida among poultry warrants the judicious use of antimicrobial agents for treating the diseases caused by P. multocida in avian spp. [ABSTRACT FROM AUTHOR]