Activity of bacterial antibiotics against some pathogenic bacteria isolated from calves diarrhoea in Baghdad (part I)
This study was aimed to isolate, identify and characterize the bacterial pathogens causing calf diarrhea in Baghdad province and study it's susceptibility toward different antibiotics. The study was conducted on 105 faecal samples collected directly from the rectum of diarrhoeic calves and brou...
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Veröffentlicht in: | Iraqi journal of agricultural science 2018-01, Vol.49 (5), p.847-854 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | This study was aimed to isolate, identify and characterize the bacterial pathogens causing calf
diarrhea in Baghdad province and study it's susceptibility toward different antibiotics. The
study was conducted on 105 faecal samples collected directly from the rectum of diarrhoeic
calves and brought to the laboratory for bacteriological examination. Isolation and
identification of the microorganisms were confirmed on the basis of their, staining, cultural,
morphology and biochemical tests. Furthermore, antibacterial test was study for different
clinical isolates of pathogenic bacteria toward varying concentration of antibiotics by disc
diffusion technique. samples were examined for the isolation of bacteria of which 45 (42.85%)
samples were positive for E. coli, 22 (20.95%) samples were positive for Salmonella spp, 16
(15.23%) samples were positive for Staphylococcus, 12 (10.5%) samples were positive for
Mixed infection, 10 (9.52%) samples were negative for bacteria. The susceptibility study
revealed that most of the E. coli, Salmonella spp., and Staphylococcus spp. were resistant to
ampicillin, amoxicillin, erythromycin, gentamicin, tetracycline, streptomycin and
trimethoprim / sulfamethoxazole with varying percentages, and susceptible to ciprofloxacin
and azithromycin. The findings of the present study indicate that the clinical isolates of
pathogenic bacteria resistance to a number of bacterial antibiotics. |
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ISSN: | 0075-0530 2410-0862 |
DOI: | 10.36103/ijas.v49i5.45 |