| 
              
              
              Open Access  
 
              
              
              
              Research 
              
              
(Published 
				online: 17-12-2016)  
              16. 
				
              
              Phenotypic and genotypic characterization of locally isolated
              
              
              Salmonella 
              
              strains used in preparation of 
              
              Salmonella 
              
              antigens in Egypt - 
              
              Hazem Mohammed Ibrahim, Dalia Ahmed Mohammed Abd El-moaty, Hanan Ali 
              Ahmed and Mona Ibrahim El-Enbaawy 
              
              Veterinary World, 9(12): 1435-1439   
              
   
                
                
doi: 
              
				
				10.14202/vetworld.2016.1435-1439 
                
                
                Hazem Mohammed Ibrahim: 
                
                Department of Bacterial Sera and Antigens Research, Veterinary 
                Serum and Vaccine Research Institute, Abbasia, Cairo, Egypt; 
                dr.hazemibrahim@gmail.com 
              
              Dalia Ahmed Mohammed Abd El-moaty: 
              
              Genetic Engineering Research Department, Veterinary Serum and 
              Vaccine Research Institute, Abbasia, Cairo, Egypt; dody.ahmed@gmail.com 
              
              Hanan Ali Ahmed: 
              
              Central Laboratory for Evaluation of Veterinary Biologics, Cairo, 
              Egypt; vetehana@yahoo.com 
              
              Mona Ibrahim El-Enbaawy: 
              
              Department of Microbiology, Faculty of Veterinary Medicine, Cairo 
              University, Cairo, Egypt; dr_mona_1@hotmail.com   
              
              Received: 16-08-2016, Accepted: 09-11-2016, Published online: 
              17-12-2016   
				
              	
              	Corresponding author: 
              	
				
                Hazem Mohammed Ibrahim, e-mail: dr.hazemibrahim@gmail.com 
 
              Citation: 
              Ibrahim HM, Abd El-moaty DAM, Ahmed HA, El-Enbaawy MI (2016) 
              Phenotypic and genotypic characterization of locally isolated
              
              
              Salmonella 
              
              strains used in preparation of 
              
              Salmonella 
              
              antigens in Egypt, 
              
              Veterinary World, 9(12): 
              1435-1439. 
 
              
				Abstract 
 
              
              
              Aim: 
              
              This work was conducted to study the phenotypic and genotypic 
              characterization of locally isolated 
              
              Salmonella 
              
              strains (Salmonella
              
              
              Pullorum, 
              
              Salmonella 
              
              Enteritidis, and 
              
              Salmonella 
              
              Typhimurium) from poultry used in the preparation of 
              
              Salmonella 
              
              antigens in Egypt. 
              
              
              Materials and Methods: 
              
              The phenotypic characterization of 
              
              Salmonella 
              
              strains was done using standard microbiological, biochemical, and 
              serological techniques. Molecular identification was done using 
              different sets of primers on different genes using different 
              polymerase chain reaction (PCR) techniques. 
              
              
              Results: 
              
              The phenotypic characterization of 
              
              Salmonella 
              
              strains was confirmed. Molecular identification revealed detection 
              of 284 bp fragment of InvA gene in all studied 
              
              Salmonella 
              
              strains. Furthermore, multiplex PCR was used for more confirmation 
              of being 
              
              Salmonella 
              
              spp., generally at 429 bp as well as genotyping of 
              
              Salmonella 
              
              Typhimurium and 
              
              Salmonella 
              
              Enteritidis at 559 and 312 bp, respectively, in one reaction. 
              
              
              Conclusion: 
              
              The locally isolated field 
              
              Salmonella 
              
              strains were confirmed phenotypically and genotypically to be
              
              
              Salmonella 
              
              Enteritidis, and 
              
              Salmonella 
              
              Typhimurium and could be used for the preparation of 
              
              Salmonella 
              
              antigens. 
              
              Keywords: 
              
              characterization, duplex polymerase chain reaction, multiplex 
              polymerase chain reaction, 
              
              Salmonella 
              
              spp. 
 
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