KONYA BÖLGESİNDEKİ İSHALLİ BUZAĞILARDAN İZOLE EDİLEN E. COLİ'LERİN, BİYOKİMYASAL, ANTİBİYOTİKLERE DUYARLILIK VE BULAŞICI TİP PLAZMİD (R-FAKTÖR) TAŞIMA ÖZELLİKLERİNİN İNCELENMESİ

Yıl 1987, Cilt: 3 Sayı: 1, 167 - 177, 01.03.1987

Mehmet Ateş İ. Yavuz Sezen Osman Erganiş Mehmet Çorlu

Öz

Researches on biochemical, antibiotics sensitivity and transferable drug - resistance ( R - factor) characteristics of E. coli strains isolated from diarrheal calves in Konya region

Öz

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.
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, H2S, indol and .motility tests were 100 %, 0.0 %, 0.0 %,
0.0 %, 100%, 0.0 %, 96.1% and 80.4% resp€ctively. It was observed that
only one of the whote strains ( 1.96 %) passessed a hemolytic activity.
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 oxytetracyclin€ and neomisin, 98.1 % for erytromisin, 54.9%
for ampisilin, 49.0 % for streptomisin, 23.4 % for chloramphenicole and
5.9% for nalidixic acide.
Of the strains 94.1 per cent were resistant to more than 3 antibiotics.
The rates of R-plasmid transmission of the strain were found to be 27.1 per cent.