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              Open Access  
Copyright: The authors. This article is an open access 
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distribution and reproduction in any medium, provided the work is properly 
cited. 
 
              
              
              Research 
              
              
(Published online: 
              
              07-04-2015) 
              1.
              
              
              Bronchoalveolar lavage is an ideal tool in evaluation of local 
              immune response of pigs vaccinated with Pasteurella multocida
              bacterin vaccine 
              - 
              Shiney 
              George, Nagendra Nath Barman, Anjan Jyoti Nath and Bhupen Sarma 
              
              Veterinary World, 8(4): 438-442   
              
   
                
                
doi: 
              10.14202/vetworld.2015.438-442   
              Shiney George: North 
              Eastern Regional Disease Diagnostic Laboratory, Government of 
              Assam, Khanapara, Guwahati - 781 022, Assam, India; 
              
              shineygeorge0@gmail.com 
              Nagendra Nath Barman: 
              Department of Microbiology, College of Veterinary Science, 
              Khanapara, Guwahati - 781 022, Assam, India; 
              
              nnbarman@gmail.com 
              Anjan Jyoti Nath: 
              Pasteur Institute of India, Coonoor - 643 013, Nilgiris, Tamil 
              Nadu, India; 
              
              drnath76@gmail.com 
              Bhupen Sarma: 
              Department of Surgery and Radiology, College of Veterinary 
              Science, Assam Agricultural University, Khanapara, Guwahati - 781 
              022, Assam, India; 
              
              bhupensarma59@gmail.com  Received: 
              21-11-2014, Revised: 
              
              23-02-2015, Accepted: 
              
              02-03-2015, Published online: 
              
              07-04-2015 
              
              
              Corresponding author: 
              
              Nagendra Nath Barman, e-mail: nnbarman@gmail.com 
 
              Citation:George 
              S, Barman NN, Nath AJ, Sarma B. Bronchoalveolar lavage is an ideal 
              tool in evaluation of local immune response of pigs vaccinated 
              with Pasteurella multocida bacterin vaccine, Veterinary 
              World 8(4): 438-442. 
 
              Abstract 
 
              Aim: The aim was to study 
              the bronchoalveolar lavage (BAL) technique in evaluating the local 
              immune response of pig immunized with Pasteurella multocida 
              bacterin vaccine.  
              Materials and Methods: Weaned piglets were immunized with 
              formalin-inactivated P52 strain of
              
              P. multocida bacterin and evaluated for pulmonary 
              immune response in BAL fluid. BAL was performed before vaccination 
              and at different post vaccination days. The BAL fluid was assayed 
              using enzyme-linked immunosorbent assay to study the development 
              of
              
              P. multocida specific antibody isotypes and also 
              evaluated for different cell populations using standard protocol.
               
              Results:
              The average recovery 
              percentage of BAL fluid varies from 58.33 to 61.33 in vaccinated 
              and control group of piglets. The BAL fluid of vaccinated pigs 
              showed increase in antibody titer up to 60th
              days post vaccination 
              (8.98±0.33), IgG being the predominant isotype reached maximum 
              titer of 6.12±0.20 on 45th
              days post vaccination, 
              followed by IgM and a meager concentration of IgA could be 
              detected. An increased concentration of the lymphocyte population 
              and induction of plasma cells was detected in the BAL fluid of 
              vaccinated pigs.  
              Conclusion: Though intranasal vaccination with
              
              P. multocida plain 
              bacterin vaccine could not provoke a strong immune response, but 
              is promising as lymphocyte population was increased and plasma 
              cells were detected. BAL can be performed repeatedly up to 3/4 
              months of age in pigs to study pulmonary immune response without 
              affecting their health.  
              Keywords:
              bronchoalveolar lavage, 
              cell types, isotype specific enzyme linked immunosorbent assay,
              
              
              P. multocida, pig, 
              pulmonary immune response.  
 
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