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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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