E. Coli

al., (1997) reported that 10% of E.coli isolates were susceptible to
doxycyclin.
Seven of ten (70%) E.coli broiler isolates were resistant to
erythromycin (table 9). Meanwhile Abd-El-Mawla (1998) recorded
resistance percentage 100% against erythromycin and pencilin G.
Seven of ten (70%) E.coli isolates were sensitive to
rifampicin. Comparable results were obtained by Prescoet and
Yielding (1990).
Six out of ten (60%) E.coli isolates were sensitive to
streptomycin. Similar results were obtained by Abd-El-Mawla (1998),
Sylvester et al., (2006) and Khoshkhoo and Peighambari (2005)
who recorded variable values of 60.9%, 71% and 26.7% respect-
ively.
Two out of ten(20%) E.coli broiler isolates were sensitive to
ampicillin. Comparable sensitivity was obtained by David et al.,
(1996) who reported sensitivity percentage 16.9% to ampicillin, also to
that obtained by Vakani et al., (1997) who found that less than 10% of
E.coli isolates were sensitive to ampicillin. A study achieved on E.coli
of poultry by Mishra et al.,(2002) showed the resistance of isolates to
ampicillin 82%.
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