Vol. 8, Issue 1 (2019)

Author(s):
Chandrahas Sannat, SD Hirpurkar, Nidhi Rawat, Amit Kumar Gupta, Md. Osamah Kalim, Poornima Gumasta, Krishna Kumar Kushwaha and Dhanajay Jolhe

Abstract:
The present investigation was carried out to study changing pattern of antibiotic resistance in bacterial isolates namely Pseudomonas aeruginosa, Staphylococcus aureus and E. coli obtained from dogs in Chhattisgarh. Representative samples were collected from dogs presented with clinical conditions viz. urinary tract infection, otitis externa and chronic pyoderma during two different periods i.e. 2013-14 and 2016-17. Samples were subjected to bacterial isolation and antibiotic disc diffusion test as per standard protocol. Predominant isolates in urinary tract infection and pyoderma were E. coli and Staphylococcus aureus during both the periods of study. However in cases of otitis externa, changing trend was reported; Staphylococcus aureus being predominant isolate in 2013-14 and Pseudomonas aeruginosa during 2016-17. Multidrug resiastant Staphylococcus aureus, Pseudomonas aeruginosa and E. coli were reported during both the phase of present study. Isolates showed relatively increased sensitivity towards imipenam. There was generous increase in resistance of Staphylococcus aureus for amoxyclav, amoxicillin, ceftazidime, ceftriaxone and gentamicin during 2016-17 as compared to 2013-14 isolates whereas changing pattern of increased sensitivity of Staphylococcus aureus isolates to ciprofloxacin and chloramphenicol was reported. E. coli showed increased resistance for ciprofloxacin, amoxyclav, amoxicillin and ceftriaxone during 2016-17 as compared with 2013-14. There was a harsh increase in antibiotic resistance among Pseudomonas aeruginosa for antibiotics namely ciprofloxacin, amoxyclav, imipenam, azithromycin, ampicillin and ceftriaxone. Increased incidence of antibiotic resistance observed in the present study poses a serious threat to livestock and also has public health significanc.