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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Prevalence, antibiotic resistance and genetic diversity of Listeria monocytogenes isolated from ducks, their rearing and processing environments in Penang, Malaysia
Food Control, Volume 32, No. 2, Year 2013
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Description
The objectives of this study were to determine the prevalence, antibiotic resistance and genetic diversity of Listeria monocytogenes isolated from ducks and their environmental samples. From August 2009 to October 2010, a total of 531 samples from ducks and their environments were obtained from wet market and commercial duck farms in Penang, Malaysia. Using the conventional bacteriological method and confirmation by phenotypic test strips, 15 samples (2.8%) were positive for L. monocytogenes. Other Listeria spp. identified were Listeria ivanovii (3.6%), Listeria innocua (0.8%), Listeria seeligeri (0.6%), Listeria welshimeri (0.2%), and unknown Listeria spp. (0.9%). The identity of the 15 isolates of L. monocytogenes was confirmed by PCR. The L. monocytogenes isolated also harboured the virulence-associated gene, hlyA. Plasmid DNA size ranged from 2.8 to 21.4 kb. All isolates were susceptible to ampicillin, cephalothin, chloramphenicol, ciprofloxacin, gentamicin and streptomycin but resistant to nalidixic acid. L. monocytogenes strains were grouped into 5 clusters and 3 singletons, 3 clusters and 3 singletons, and 2 clusters and 3 singletons by RAPD, REP, and ERIC respectively, at coefficient of 0.85. Our study indicates that ducks and their environments are contaminated by L. monocytogenes and other Listeria spp. We also describe for the first time the prevalence, antibiotic resistance and the genetic diversity of L. monocytogenes in ducks and duck environmental sources in Malaysia. © 2012 Elsevier Ltd.
Authors & Co-Authors
Adzitey, Frederick
Malaysia, Minden
School of Industrial Technology
Ghana, Tamale
University for Development Studies Ghana
Rusul, Gulam R.A.
Malaysia, Minden
School of Industrial Technology
Huda, Nurul
Malaysia, Minden
School of Industrial Technology
Cogan, Tristan
United Kingdom, Bristol
University of Bristol
Ćorry, Janet E.L.
United Kingdom, Bristol
University of Bristol
Statistics
Citations: 41
Authors: 5
Affiliations: 3
Identifiers
Doi:
10.1016/j.foodcont.2012.12.016
ISSN:
09567135
Research Areas
Genetics And Genomics
Study Design
Cross Sectional Study