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              Open Access  
Copyright: The authors. This article is an open access 
article licensed under the terms of the Creative Commons Attribution License 
 
 
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distribution and reproduction in any medium, provided the work is properly 
cited. 
 
              
              
              Research 
(Published 
online: 26-12-2014) 
              
              19. Prevalence of Clostridium perfringens
              toxin genotypes in enterotoxemia suspected sheep flocks of 
              Andhra Pradesh - 
              N. Vinod Kumar, D. Sreenivasulu and Y. N. 
              Reddy 
              
              Veterinary World, 7(12): 1132-1136 
                
              
   
                
                
doi: 
              10.14202/vetworld.2014.1132-1136 
                  N. 
              Vinod Kumar: 
              
              Department of Veterinary Microbiology, College of Veterinary 
              Science, Tirupathi, Andhra Pradesh, India; nagaram_vinod@yahoo.com D. 
              Sreenivasulu: 
              
              Department of Veterinary Microbiology, College of Veterinary 
              Science, Tirupathi, Andhra Pradesh, India; dsreenivasulu10@gmail.com Y. N. 
              Reddy: Department of Veterinary Microbiology, College of 
              Veterinary Science, Tirupathi, Andhra Pradesh, India;
              
              drynreddy@rediffmail.com   
              Received: 31-07-2014, Revised: 11-11-2014, Accepted: 19-11-2014, 
              Published online: 26-12-2014   
              
              
              Corresponding author:
              
              N. Vinod Kumar, e-mail: nagaram_vinod@yahoo.com 
 
              Abstract 
 Aim:
              To identify the Clostridium perfringens toxin genotypes 
              prevailing in enterotoxemia suspected sheep flocks in Andhra 
              Pradesh by using multiplex PCR. 
              Materials and Methods: Intestinal scrapings were collected 
              from lambs below three months of age from flocks with similar 
              management from different Districts of Andhra Pradesh, in India. A 
              total of 208 samples were collected with 140 from enterotoxemia 
              suspected flocks and 68 from healthy flocks. Following processing 
              and culture of the samples, colonies were identified by 
              morphological and biochemical tests. All the clostridial isolates 
              were analyzed by multiplex PCR. 
              Results: C. pefringens were isolated from 97 out of 140 
              enterotoxemia suspected flocks (69.29%) and 27 out of 68 healthy 
              flocks (39.71 %). Genotyping of the 97 iolates by multiplex PCR 
              from enterotoxemia suspected flocks indicated C. perfringens
              type A, C and D 67.01% (65 out of 97); 11.34% (11 out of 97) 
              and 21.65% (21 out of 97) respectively. Isolates from healthy 
              flocks indicated the presence of type A and D 92.59% (25 out of 
              27) and 7.40% (2 out of 27) respectively. Number of isolates from 
              enterotoxaemia suspected flocks were significantly high (P<0.001) 
              than healthy flocks. Type A is found to be predominant in both 
              enterotoxemia suspected and healthy flocks (67.01% and 92.59%).
               
              Conclusions: Prevalence of C. perfringens type C was 
              reported for the first time in India. Clostridium perfringens
              type D and type C were found to be the major causative types 
              for enterotoxemia.  
              Keywords: Clostridium perfringes, 
              enterotoxaemia, lamb mortality, multiplex PCR, Toxin typing. 
 
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