General Regression Neural General Regression Neural Network Model for Growth of Network Model for Growth of Salmonella Salmonella Serotypes on Chicken Serotypes on Chicken Skin for Use in Risk Assessment Skin for Use in Risk Assessment Thomas P. Oscar, Ph.D. Thomas P. Oscar, Ph.D. USDA, ARS USDA, ARS Princess Anne, MD Princess Anne, MD
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Thomas P. Oscar, Ph.D. USDA, ARS Princess Anne, MD
General Regression Neural Network Model for Growth of Salmonella Serotypes on Chicken Skin for Use in Risk Assessment. Thomas P. Oscar, Ph.D. USDA, ARS Princess Anne, MD. Risk Assessment Data Gaps. Strain variation. Microbial competition. Initial dose. Food matrix. - PowerPoint PPT Presentation
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General Regression Neural Network General Regression Neural Network Model for Growth of Model for Growth of SalmonellaSalmonella
Serotypes on Chicken Skin for Use in Serotypes on Chicken Skin for Use in Risk AssessmentRisk Assessment
Thomas P. Oscar, Ph.D.Thomas P. Oscar, Ph.D.USDA, ARSUSDA, ARS
• Compatible with Monte Carlo simulation softwareCompatible with Monte Carlo simulation software
Jeyamkondan et. al., 2001
ObjectiveObjective
• To develop a GRNN and simulation model for To develop a GRNN and simulation model for growth of growth of SalmonellaSalmonella on chicken skin as a on chicken skin as a function of serotype for use in risk assessment.function of serotype for use in risk assessment.
– Short-term temperature abuse (0 to 8 h)Short-term temperature abuse (0 to 8 h)
Materials and MethodsMaterials and Methods
• Experimental Design (3 x 10 x 5 x 2 x 2)Experimental Design (3 x 10 x 5 x 2 x 2)
• Thank you for your attention!Thank you for your attention!
• Thanks to Thanks to Jaci LudwigJaci Ludwig of ARS and of ARS and Celia Celia WhyteWhyte and and Olabimpe OlojoOlabimpe Olojo of UMES for of UMES for their outstanding technical assistance on their outstanding technical assistance on this project.this project.