Vet World Vol.10 June-2017 Article-13
Research Article
Veterinary World, 10(6): 650-654
https://doi.org/10.14202/vetworld.2017.650-654
Effect of season on physiological, biochemical, hormonal, and oxidative stress parameters of indigenous sheep
2. Department of Livestock Production Management, College of Veterinary Science and Animal Husbandry, Anand Agricultural University, Anand, Gujarat, India.
Background and Aim: This study was conducted to evaluate the impact of summer and winter season on physiological, biochemical, hormonal, and antioxidant parameters in Indigenous sheep.
Materials and Methods: The research was carried out during summer and winter season. 8 adult apparently healthy female sheep (aged 2-4 years) of similar physiological status were selected. Daily ambient temperature and relative humidity were recorded to calculate the temperature-humidity index (THI). The THI value of summer and winter season were 82.55 and 59.36, respectively, which indicate extreme hot condition during summer season and extreme cold condition during winter season. Physiological parameters were recorded daily during the experimental periods. Blood samples were collected at weekly interval and analyzed for biochemical, hormonal, and antioxidant parameters. The results were analyzed using completely randomized design.
Results: From data obtained in this study, we found that higher THI during summer have significant effect over various physiological, biochemical, hormonal, and enzymatic indices of indigenous sheep. The physiological response such as rectal temperature, respiration rate (RR), pulse rate (PR), and skin temperature (ST) was increased significantly. We also found a significant increase in some biochemical parameters such as blood urea nitrogen (BUN), uric acid, creatinine (Cr), alanine transaminase (ALT), aspartate transaminase (AST), sodium (Na), and potassium (K). The level of cortisol hormone and superoxide dismutase (SOD), glutathione peroxidase (GPx), and lipid peroxidase (LPO) antioxidants increased significantly during summer. Whereas, some parameters such as glucose, cholesterol, calcium (Ca), inorganic phosphorus (IP), triiodothyronine (T3), and thyroxine (T4) were decreased significantly during summer season.
Conclusion: It was concluded that the THI is a sensitive indicator of heat stress and is impacted by ambient temperature more than the relative humidity in Indigenous sheep. Higher THI is associated with significant increase in RT, RR, PR, ST, BUN, uric acid, Cr, ALT, AST, Na, K, cortisol, SOD, GPx, and LPO and with a significant decrease in glucose, cholesterol, Ca, IP, T3 and T4. Keywords: biochemical, indigenous sheep, physiological, temperature humidity index.
Keywords: biochemical, indigenous sheep, physiological, temperature humidity index.
How to cite this article: Rathwa SD, Vasava AA, Pathan MM, Madhira SP, Patel YG, Pande AM (2017) Effect of season on physiological, biochemical, hormonal, and oxidative stress parameters of indigenous sheep, Veterinary World, 10(6): 650-654.
Received: 24-10-2016 Accepted: 20-04-2017 Published online: 16-06-2016
Corresponding author: Sawankumar D. Rathwa E-mail: sawanrathwa@gmail.com
DOI: 10.14202/vetworld.2017.650-654
Copyright: Rathwa, et al. This article is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http:// creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.