| 
              
              
              Open Access  
 
              
              
              
              Research 
              
              
(Published 
				online: 03-12-2016)  
              2. 
				
              Gastrointestinal nematode larvae in 
              the grazing land of cattle in Guwahati, Assam -
              
              
              Meena Das, D. K. Deka, S. Islam, P. C. Sarmah
              
              
              and K. Bhattacharjee 
              
              Veterinary World, 9(12): 1343-1347   
              
   
                
                
doi: 
              
				
				10.14202/vetworld.2016.1343-1347 
                
                Meena Das:
                
              
                Division of 
                Animal Health, ICAR Research Complex for NEH Region, Umiam, 
                Meghalaya, India; 
              
                meenad3@gmail.com 
              D. K. Deka:
              
              
              Department of 
              Parasitology, College of Veterinary Science, Guwahati, Assam, 
              India; 
              
              dekadilip1953@gmail.com 
              S. Islam:
              
              
              Department of 
              Parasitology, College of Veterinary Science, Guwahati, Assam, 
              India; 
              
              isaidul@yahoo.com 
              P. C. Sarmah:
              
              
              Department of 
              Parasitology, College of Veterinary Science, Guwahati, Assam, 
              India; 
              
              pcsarmah@gmail.com 
              K. Bhattacharjee:
              
              
              Department of 
              Parasitology, College of Veterinary Science, Guwahati, Assam, 
              India; kantabhatta@gmail.com   
              
              Received: 25-07-2016, Accepted: 03-11-2016, Published online: 
              03-12-2016   
				
              	
              	Corresponding author: 
              	
				Meena Das, 
                e-mail: meenad3@gmail.com 
 
              Citation: 
              Das M, Deka DK, Islam S, Sarmah PC, Bhattacharjee K (2016) 
              Gastrointestinal nematode larvae in the grazing land of cattle in 
              Guwahati, Assam, Veterinary World, 9(12): 1343-1347. 
 
              
				Abstract 
 
              Aim: 
              To know the 
              prevalence of gastrointestinal nematode larvae (L3) 
              in the grazing land of cattle in Guwahati, Kamrup district, Assam.
               
              Materials and 
              Methods: 
              Pastures were 
              collected and examined for the presence of nematode larvae (L3) 
              from six localities of Guwahati at monthly interval from August 
              2012 to July 2013. The counted larvae were then expressed as per 
              kg dry matter of herbage (L3/kg 
              DM).  
              Results: 
              Examination of 
              pastures revealed presence of nematode larvae (L3) 
              in pastures throughout the year which varied from 4.5 L3/kg 
              DM in January to a maximum of 106.33 L3/kg 
              DM in August. The L3
              of Haemonchus contortus, Trichostrongylus
              spp., Oesophagostomum spp., Cooperia spp., and
              Mecistocirrus spp. were recovered from pastures. The 
              average pasture larval burden (PLB) was 34.75±3.48 L3/kg 
              DM. Season-wise PLB revealed the presence of 23.89±3.01, 
              67.54±5.41, 26.67±1.92, and 7.28±0.89 L3/kg 
              DM during pre-monsoon, monsoon, post-monsoon, and winter seasons, 
              respectively. Monsoon season has significant (p<0.05) effect on 
              PLB. However, analysis of variance of different locations with 
              respect to season revealed that there was no significant 
              difference but season-wise it was highly significant (p<0.01). 
              Pearson correlation of environmental variables (temperature, 
              relative humidity, and rainfall) with PLB revealed correlation was 
              statistically significant with rainfall (p<0.05).  
              Conclusion:
              This 
              study reveals the presence of five nematode larvae (L3) 
              in the pastures of Guwahati, Assam throughout the year, 
              statistically significant during monsoon season.  
              
              Keywords: 
              
              Assam, cattle, Guwahati, nematode larvae (L3), 
              pastures. 
 
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