NDLI: Prevalence and risk factors for Salmonella spp. colonization in broiler flocks in Shiraz, southern Iran

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Year: 2014, Volume: 5

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Prevalence and risk factors for Salmonella spp. colonization in broiler flocks in Shiraz, southern Iran

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Year: 2013, Volume: 4

Prevalence and risk factors for Salmonella spp. colonization in broiler flocks in Shiraz, southern Iran

Content Provider	PubMed Central
Author	Maryam, Ansari-lari Shahram, Shekarforoush Samira, Mehrshad Safari, Hosna
Abstract	Salmonella spp. are important food borne pathogens worldwide that frequently infect poultry flocks. This cross-sectional study was conducted to determine the prevalence of Salmonella spp. colonization in broiler flocks in Shiraz (southern Iran) and to find the possible association of infection status with some potential risk factors including vaccination program and use of antibiotics. During October 2009 to April 2010, a total of 40 broiler flocks were selected in slaughterhouse and 20 cloacae contents were collected from each flock. Every five cloacae contents were pooled and investigated for Salmonella spp. using appropriate culture methods. The flock was considered positive if any of the pooled samples turned positive in culture. Statistical analysis was performed using multiple logistic regression. Nine out of 40 flocks (22.50%, 95% CI: 9-36) were positive for Salmonella spp. colonization. Nearly 75.00% of flock owners reported that they used antibiotics during production period, more frequently fluoroquinolones, combination of trimethoprim-sulfonamides (TMP/SU) and tetracycline. Nearly 60.00% of the flocks which had used TMP/SU were positive for Salmonella spp. compared with 10.00% of the flocks which did not use this antibiotic (p = 0.006). Increasing flock age was associated with a decreased chance of Salmonella spp. detection (p = 0.003). In flocks which received infectious bronchitis vaccine, 36.00% were positive for Salmonella spp. whereas this was 15.00% for flocks which did not receive this vaccine (p = 0.08). Careful monitoring of antibiotics use and further studies to determine the most appropriate vaccination program in the field is recommended.
Starting Page	65
File Format	PDF
ISSN	23223618
e-ISSN	23223618
Journal	Veterinary Research Forum : an International Quarterly Journal
Issue Number	1
Volume Number	5
Language	English
Publisher	Urmia University Press
Publisher Date	2014-01-01
Access Restriction	Open
Rights Holder	Urmia University Press
Subject Keyword	Research in Higher Education
Content Type	Text
Resource Type	Article

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