15. Apley M.D, Brown SA, Fedorka-Cray PJ et al. Role of veterinary therapeutics in
bacterial resistance development: animal and public health perspectives.
Journal of American Veterinary Medical Association 1998;212:1209-1213.
16. Witte W. Medical consequences of antibiotic use in agriculture. Science
1998;279:996-997.
17. Witte W, Klare I, Werner G. The use of antibiotics as growth promoters in
animal husbandry and antibiotic resistance in bacterial pathogens of humans.
Fleischwirfscharft, 1999;79:90-94.
18. Okoli C Aerial gases and temperature levels in selected poultry houses in Imo
State - Nigeria. In: Malu UC, Gottwald F (eds.) Studies of sustainable
agriculture and animal science in sub- Saharan Africa. Peter Lang,
Europalscher Verlag der Wissenschaften; 2004. p.
19. Okoli IC. Studies on the anti-microbial resistance of E. coli isolates from feeds
and poultry production units. Ph. D. Thesis, Federal University of Technology
Owerri, Nigeria, 2003. p. 248.
20. Chah KF, Bessong WO, Oboegbulem SI. Antibiotic resistance in avian
colisepticeamic E. Coli strains in Southeast, Nigeria. In, Proc. 25th Ann. Conf.,
Nig. Soc. For Anim. Prod. (NSAP), 2000 March, 19-23; Umudike, Nigeria: 2000.
p. 303-305.
21. Gillies, RR, Dodds TC. Bacteriology illustrated 4th edition. Churchill Livingstone
Edinburgh, London. 1976
22. Cruickshank R, Duguid JP, Marmion BP et al. Medical microbiology. 12th
edition, Vol. 2, Edinburgh: Churchill Livingston; 1983.
23. Edwards PRD, Ewing WR. Identification of Enterobacteriaceae, 3rd edition,
Minneapolis, Minnesota : Burgess Publishing Company; 1972.
24. Bauer AW, Kirby WMM, Sherris JC, Turck M. Antibiotic susceptibility testing by
a standardized single disk method. Am. J. Clin. Pathol. 1966;36:493-6.
25. NCCLS Performance standard of anti-microbial disk and dilution susceptibility
tests for bacteria isolated from animals. Approved standards, M 31 - A,
1999;19 (11).
26. Cheesbrough M Microbiological tests. In: District laboratory practice in tropical
countries. Part 2. Cambridge: Cambridge University Press; 2000.
27. Chah KF, Okafor SC, Oboegbulem SI. Anti-microbial resistance of none clinical
E. coli strains from chicken in Nsukka, Southeastern Nigeria. Nig. J. Anim.
Prod. 2003;30(1):101-106.
28. Wang M, Tran JH, Jacoby GH et al. Plasmid-mediated quinolone resistance in
clinical isolates of E. coli from Shanghai, China. Antimirobial Agents
Chemotherapy, 2003;47(7):2242-2248.
29. Stern NJ. Reservoirs for Campylobacter jejuni and approaches for intervention
in poultry. In: Nachamkin I, Blaser MJ, Tompkins LS. (editors) Campylobacter
jejuni: current status and further trends, Washington, American Society for
Microbiology, 1992; p. 40-60.
30. On SLW, Nielsen EM, Engberg J, Madsen M. Validity of Scal defined genotypes
of Campylobacter jejuni examined by Scal I, Kp nl and Bam 1-11
polymorphisms: evidence of identical clones infecting humans, poultry and
cattle. Epidemology of Infection 1998;120:231-237.
31. Okoli IC, Chah KF, Herbert U et al. Anti-microbial resistance of non-clinical E.
coli isolates from a commercial layer poultry farm in Imo state, Nigeria. Annals
of Agricultural and Environmental Medicine, 2005; (In press).
32. Schroeder CM, Meng J, Zhao S et al. Ant microbial resistance of Escherichia
coli 026, 0103, 0111, 0128 and 0145 from animals and humans. Emerging
Infectious Diseases 2002;8(12):1409-1414.
33. Jones ME, Peters E, Weersink, AM et al. Widespread occurrence of integrons
causing multiple antibiotic resistances in bacteria. Lancet 1997;349:1742-
1743.
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