Table 1: Antimicrobial resistance patterns of E. coli isolates from free range
poultry in Imo state.
|
Resistance patterns |
Frequency of |
Occurrence |
|
1 AM | ||
|
2 NI-AM__________________________________ | ||
|
3 CO-AM_____________________________ | ||
|
4 CF-CO-AM____________________________ |
2 |
LF, FRC |
|
5 CO-NA-AM___________________________ |
________2________ |
________LF________ |
|
6 NI-CO-AM_____________________________ | ||
|
7 CO-CH-AM__________________________ |
2 |
LF, RO |
|
8 CO-NA-CH-AM________________________ |
________3________ |
LF, RO |
|
9 NI-CF-CH-AM__________________________ | ||
|
10 NI-CO-NA-AM_________________________ | ||
|
11 CO-GN-NA-CH-AM____________________ | ||
|
12 NI-CF-CO-TE-AM_______________________ | ||
|
13 NI-CO-NA-CH-AM______________________ |
5 |
LF,FRC, TK |
|
14 NI-CF-NA-CH-AM______________________ | ||
|
15 NI-CF-CO-NA-AM______________________ | ||
|
16 NI-CO-TE-CH-AM______________________ | ||
|
17 NI-NB-CO-NA-AM______________________ | ||
|
18 NI-CO-CP-NA-AM______________________ | ||
|
19 CF-CO-NA-CH-AM_____________________ | ||
|
20 CF-CO-TE-NA-Ch-AM__________________ | ||
|
21 NI-CF-CO-NA-Ch-AM___________________ | ||
|
22 NI-NB-CO-NA-Ch-AM__________________ |
3 |
LF, TK, RO~~ |
|
23 NI-CO-TE-NA-Ch-AM___________________ |
________6_______ |
LF,OL,TK, RO |
|
24 NI-CF-CO-TE-Ch-AM___________________ | ||
|
25 NI-NB-CO-TE-Ch-AM___________________ | ||
|
26 Ni-CF-CO-TE-NA-CH-AM________________ |
2 |
OL, TK |
|
27 Ni-NB-CO-TE-NA-CH-AM________________ |
4 |
OL, RO, |
|
28 Ni-Cf-CO-TE-CP-NA-CH-AM_____________ | ||
|
29 Ni-Cf-NB-CO-TE-NA-CH-AM_____________ |
2 |
TK, RO |
Discussion
E. coli isolates from local fowls that rarely receive antibiotics recorded very high
resistance against ampicillin and cotrimoxazole, and moderate rates to nalidixic acid
and nitrofurantoin. These figures are at variance with the much lower figures
reported for ampicillin and cotrimoxazole in local chicken at Nsukka, Enugu state,
Nigeria.(27) The high figures presented here may not be out of place but a reflection
of resistance events in other hosts sharing the same environment with the local
fowls. Although local fowls hardly receive any modern veterinary attention, they may
maintain close contact through a myriad of routes with organisms originating from
other important hosts in their environment such as humans and exotic chicken that
had been previously exposed to various antibiotics. For example, in many rural
communities in southeastern Nigeria, it is common for people to defecate in and
around surrounding compound bushes or to urinate just at the corner of the house.
OJHAS Vol 4 Issue 3, 2005-3-3: Original Article. Antimicrobial resistance profile of E.coli isolates from tropical free range chickens. www.ojhas.org/issue15/2005-3-3.htm