Researchizs on biochemical, antibiotics sensitivity and transferable drug - resistance ( r - factor) characteristics of e. c ali strains isolated from diarrheal calves in konya region.
In this study, same biochemical characteristics, different antibiotics resistance states and R- factor transmissibility of 51 E. coli strain.s isolated from calves with diarrhea up to one week age were examined.<p> Biochemical characteristics of the strains were found to be as follows: The rat...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Selcuk University Press
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| Series: | Eurasian Journal of Veterinary Sciences |
| Online Access: | http://eurasianjvetsci.org/pdf.php3?id=943 |
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| Summary: | In this study, same biochemical characteristics, different
antibiotics resistance states and R- factor transmissibility of 51 E. coli
strain.s isolated from calves with diarrhea up to one week age were
examined.<p>
Biochemical characteristics of the strains were found to be as follows:
The rates for glucose, lactose, mannitol dulsitol, arabinose and adonitol
fermentation tests were 100 %, 100%, 100 %, 54.9 %, 98.1 % and 21.6 %
respectively and the rates for urease production, citrate utilization, tryp- tophane deaminase, H<sub>2</sub>S, indol and .motility tests were 100 %, 0.0 %, 0.0 %,
0.0 %, 100%, 0.0 %, 96.1% and 80.4% respectively. It was observed that
only one of the whore strains ( 1.96 %) passessed a hemolytic activity.<p>
According to the results of disk diffusion method, antiıbiotic resistance
rates of E. coli strains were determined as follows 70.5 % for tetracyline,
86.2 % for oxytetracycline and neomisin, 98.1 % for erytromisin, 54.9%
for ampisilin, 49.0 % for streptomisin, 23.4 % for chloramphenicole and
5.9% for nalidixic acide.<p>
Of the strains 94.1 per cent were resistant to more than 3 antibiotics.<p>
The rates of R – plasmid transmission of the strain were found to be 27.1 per cent. |
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| ISSN: | 1309-6958 2146-1953 |