Advances in Animal and Veterinary Sciences

Research Article
Adv. Anim. Vet. Sci. 2 (2S): 43 - 45. Special Issue-2 (Advances in Diagnosis and Control of Infectious Diseases of Animals)
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Raj Pal Diwakar, Namita Joshi, Rajesh Kumar Joshi*, Vibha Yadav
Department of Veterinary Microbiology, College of Veterinary Science and Animal Husbandry, N.D. University of Agriculture and Technology
Kumarganj, Faizabad- 224229 (U.P.), India
*Corresponding author:

Members of Family Enterobacteriaceae have been implicated in various pathogenic conditions of animals, birds and human beings. In recent past, the enterobacteria like Salmonella and E. coli have been found associated with severe food borne outbreaks. The study was conducted to find out association of enterobacteria in the cases of collibacillosis in bovine calves. A total of 125 faecal samples were collected from 3-6 months old bovine calves showing diarrhea and subjected to isolation and identification of enterobacteria. E. coli could be isolated from 110 samples, 53 samples yielded Pseudomaonas, while Shigella could be isolated from 23 samples followed by Edwardsiella from 13 samples, Salmonella from 9 samples, Klebsiella from 4 samples and Proteus from 3 samples. E. coli was found to be the major single bacterial agent associated with cases of collibacillosis either alone or in combination with other enterobacteria. In vitro sensitivity of the isolates was tested against seven antimicrobial agent’s viz. Ampicillin, Chloramphenicol, Cloxacillin, Ciprofloxacin, Gentamicin, Streptomycin, and Tetracycline. Gentamicin was recorded to be the most effective antibiotic in case of calf diarrhea as highest number of isolates of E. coli, Shigella, Edwardsiella, Salmonella, Klebsiella as well as Proteus recovered from cases of calf diarrhea was found sensitive to Gentamicin.

Key Words: Enterobacteria, Bovine calf diarrhoea, E. coli, Shigella, Edwardsiella, Salmonella, Klebsiella , Proteus, Antibiogram