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Studies on Heat Shock Protein 70, Antioxidant Status, Biochemical and Hormonal Profiles during Summer Stress in Hallikar Cattle

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Title Studies on Heat Shock Protein 70, Antioxidant Status, Biochemical and Hormonal Profiles during Summer Stress in Hallikar Cattle
 
Creator Gurubassayya P. Kalamath
 
Contributor Narayan Swamy, M.
Leela, V.
Veena, T
Yathiraj, S.
Krishnaswamy, A.
Nagaraja, C.S.
Shrikrishna Isloor
 
Subject HSP70, Antioxidant enzymes, Cortisol, Summer stress, Thermotolerance.
 
Description Ph.D. Thesis
The study was conducted to ascertain the effect of summer stress on heat shock
protein 70 (HSP70) levels, erythrocyte antioxidant enzyme activities, serum biochemical
and plasma hormonal profiles in Hallikar cattle. Twelve female Hallikar cattle aged four
to six years belonging to farmers of Madabal village, Magadi Taluk, Ramanagara
District, exposed to natural stressors were selected for the study and were divided into
control and supplemented groups with six animals in each group. Control group received
regular diet and supplemented group received vitamin E and selenium, additionally.
Blood samples collected at monthly intervals during winter, summer and rainy seasons
were utilized for determination of various parameters. Plasma HSP70 levels increased
significantly in control and supplemented groups during summer seasons. Activities of
catalase, superoxide dismutase, glutathione peroxidase, alanine transaminase, aspartate
transaminase and alkaline phosphatase were significantly higher during summer season in
control group that reflected summer stress compared to supplemented group. Serum total
protein and triglycerides levels were significantly lower during summer in control group
and increased significantly in supplemented group. The levels of triiodothyronine,
thyroxine and insulin were significantly lower during summer in control group and
increased significantly in supplemented group. Plasma cortisol level was significantly
higher in control group and decreased in supplemented group. It was concluded that
significantly higher plasma HSP70 levels during summer season confer better
thermotolerance ability of the heat stressed animals. The reduced antioxidant enzyme
activity and plasma cortisol levels in the supplemented group indicated the alleviation of
heat stress by vitamin E and selenium supplementation.
 
Date 2016-08-02T16:00:06Z
2016-08-02T16:00:06Z
2015-05-25
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/70638
 
Language en
 
Format application/pdf
 
Publisher Karnataka Veterinary, Animal and Fisheries Sciences University, Bidar