Prevalence and Characteristics of Salmonella Isolated from Free-Range Chickens in Shandong Province, China
Joint Authors
Gao, Yanxia
Chang, Weishan
Zhao, Xiaonan
Ye, Chaoqun
Yang, Lingling
Wang, Tao
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-10-09
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Compared with chickens raised in intensively managed breeding farms, free-range chickens in China are quite popular due to lower breeding density and less antibiotics usage.
However, investigations about Salmonella enterica from free-range chickens are quite rare.
The aim of the present study was to investigate prevalence and characteristics of Salmonella in free-range chickens in Shandong province, China.
During the period of August and November 2015, 300 fresh fecal swabs from different broilers in three free-range chicken farms (100 samples per farm) were collected to isolate Salmonella, and then these isolates were subjected to serotyping, antibiotic sensitivity testing, enterobacterial repetitive intergenic consensus-polymerase chain reaction (ERIC-PCR), and multilocus sequence typing (ST).
A total of 38 Salmonella isolates (38/300, 12.7%) were recovered.
The most common serotype was Enteritidis (81.6%), followed by Indiana (13.2%) and Typhimurium (5.3%).
Twenty-two out of 38 isolates (57.9%) were resistant to ampicillin, the highest resistance rate, but resistance rates to cefazolin, cefotaxime, and ceftazidime were only 7.9%.
The multidrug resistance (MDR) rate was 26.3%.
Additionally, the Salmonella isolates could be classified into 25 genotypes by ERIC-PCR and were divided into three ST types (ST11, ST17, and ST19), with ST11 the highest isolation rate (81.6%).
In summary, as with other poultry, free-ranging chickens may also serve as potential reservoir for antibiotic resistant Salmonella, thereby posing a threat to public health.
American Psychological Association (APA)
Zhao, Xiaonan& Gao, Yanxia& Ye, Chaoqun& Yang, Lingling& Wang, Tao& Chang, Weishan. 2016. Prevalence and Characteristics of Salmonella Isolated from Free-Range Chickens in Shandong Province, China. BioMed Research International،Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1098996
Modern Language Association (MLA)
Zhao, Xiaonan…[et al.]. Prevalence and Characteristics of Salmonella Isolated from Free-Range Chickens in Shandong Province, China. BioMed Research International No. 2016 (2016), pp.1-6.
https://search.emarefa.net/detail/BIM-1098996
American Medical Association (AMA)
Zhao, Xiaonan& Gao, Yanxia& Ye, Chaoqun& Yang, Lingling& Wang, Tao& Chang, Weishan. Prevalence and Characteristics of Salmonella Isolated from Free-Range Chickens in Shandong Province, China. BioMed Research International. 2016. Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1098996
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1098996