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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 
 
 
(http://creativecommons.org/licenses/by/2.0) which permits unrestricted use, 
distribution and reproduction in any medium, provided the work is properly 
cited. 
 
              
              
              Research 
(Published 
online: 18-10-2014) 
              
              14.
              
              Thermoregulatory and adaptive responses of 
              adult buffaloes (Bubalus bubalis) during hyperthermia: 
              Physiological, behavioral, and metabolic approach - 
              Alok K. 
              Wankar, Gyanendra Singh and Brijesh Yadav 
              
              Veterinary World, 7(10): 825-830   
              
   
                
                
doi: 
              10.14202/vetworld.2014.825-830     Alok K. 
              Wankar: 
              
              Department of Physiology and Biochemistry, Khalsa College of 
              Veterinary and Animal Sciences, Amritsar, Punjab, India;
              
              
              wankaralok@gmail.com 
              Gyanendra Singh: 
              
              Physiology and Climatology Division, Nuclear Research Laboratory, 
              Indian Veterinary Research Institute, Bareilly, Uttar Pradesh, 
              India;
              
              
              gyansidd@gmail.com Brijesh 
              Yadav: Division of Physiology, College of Veterinary and 
              Animal Husbandry, Mathura, Uttar Pradesh, India;
              
              drbrijvet@gmail.com   Received: 
              05-07-2014, Revised: 10-09-2014, Accepted: 16-09-2014, Published 
              online: 18-10-2014   
              
              
              Corresponding author:
              
              Alok K. Wankar, e-mail: wankaralok@gmail.com 
 
              Abstract 
 Aim:
              The study was planned to evaluate the indigenous animal 
              adaptive capabilities during optimum temperature versus heat 
              stress (HS). 
              Materials and Methods: Four adult buffaloes were exposed at 
              25°C, 30°C, 35°C, and 40°C for 21 days at every treatment in 
              environmentally controlled chamber and physio-biochemical 
              variation and animal behavior was observed.  
              Results: The study revealed significantly increased rectal 
              temperature, respiration rate, water intake, sodium, reactive 
              oxygen metabolites, cortisol, aspartate aminotransferase, and 
              alanine aminotransferase while, pulse rate and thyroid hormones 
              decreased during thermal stress. Panting, restlessness, 
              salivation, and sweating were higher during HS while, rumination 
              and urination contrastingly lowered. 
              Conclusion: The results reflect the impact of hyperthermia 
              both acute and chronic, on the animals forcing various 
              physiobiochemical, endocrinal, and behavioral changes for 
              acclimatization during a stressful period aimed at maintaining 
              homeothermy. 
              Keywords: acclimatization, behavior, endocrinal, heat stress, 
              panting, physio-biochemical. 
 
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