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A High-throughput Platform for the Screening of Salmonella spp./Shigella spp.
Published on: November 7, 2018
PCR based rapid detection of Salmonella from poultry samples
R A Siddique1, M Saxena, B D Lakhchaura
1Veterinary Biochemistry, C.V.Sc. & A.H., NavsariAgricultural University, Gujarat, India. riazndri@gmail.com
Indian Journal of Public Health
|May 18, 2010
Summary
This study developed a rapid Salmonella detection system for poultry using Polymerase Chain Reaction (PCR). The PCR method targets the invA gene, offering a faster and more sensitive alternative to traditional Salmonella testing.
Area of Science:
- Veterinary Microbiology
- Food Safety
- Molecular Diagnostics
Background:
- Salmonella poses significant zoonotic risks, causing diseases in both animals and humans.
- Traditional Salmonella isolation methods are time-consuming, often requiring up to 7 days.
- Molecular techniques like PCR offer enhanced speed and sensitivity for bacterial detection.
Purpose of the Study:
- To develop a rapid detection system for Salmonella in poultry samples.
- To evaluate the efficacy of Polymerase Chain Reaction (PCR) for Salmonella screening.
- To provide a faster alternative to conventional diagnostic methods.
Main Methods:
- Screening of 300 poultry samples for Salmonella presence.
- Utilizing Polymerase Chain Reaction (PCR) to target the invA gene specific to Salmonella.
- Analysis of PCR products for a specific amplicon size (284 bp).
Main Results:
- Rapid detection of Salmonella was achieved using PCR.
- The targeted invA gene yielded a distinct PCR product of 284 bp.
- The PCR method demonstrated potential for efficient Salmonella screening.
Conclusions:
- The developed PCR technique provides a rapid and sensitive method for Salmonella detection in poultry.
- This molecular approach significantly reduces the time required for Salmonella identification compared to traditional methods.
- The invA gene-based PCR is suitable for routine Salmonella screening in food safety and veterinary diagnostics.

