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
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Creator |
Gurubassayya P. Kalamath
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Contributor |
Narayan Swamy, M.
Leela, V. Veena, T Yathiraj, S. Krishnaswamy, A. Nagaraja, C.S. Shrikrishna Isloor |
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Subject |
HSP70, Antioxidant enzymes, Cortisol, Summer stress, Thermotolerance.
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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. |
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Date |
2016-08-02T16:00:06Z
2016-08-02T16:00:06Z 2015-05-25 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/70638
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Language |
en
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Format |
application/pdf
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Publisher |
Karnataka Veterinary, Animal and Fisheries Sciences University, Bidar
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