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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2015 - IJCMAS--ICV 2015: 85.95 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2017) [Effective from January 1, 2017]For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2017)
[Effective from January 1, 2017]
For more details click here

ICV 2015: 85.95
Index Copernicus ICI Journals Master List 2015 - IJCMAS--ICV 2015: 85.95
For more details click here
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
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Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2015: 85.95
NAAS RATING 2017: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(4): 1985-1992
DOI: https://doi.org/10.20546/ijcmas.2017.604.236


Effect of Elevated Temperature and Increased CO2 Levels on Biochemical and Hormonal Parameters in Tharparkar and Karan Fries Heifers
Priyanka Pandey*, O.K. Hooda and Sunil Kumar
Animal Physiology Division, ICAR-National Dairy Research Institute,Karnal-132001, Haryana, India
*Corresponding author
Abstract:

The present investigation was undertaken to study the effect of elevated temperature and increased CO2 levels on biochemical and hormonal parameters of Tharparkar and Karan Fries heifers. The experiment was carried out in a climatic chamber. The animals of both breeds were exposed at different temperature and CO2 levels. Exposure conditions of 250C, 400 ppm CO2 level and 60% RH was taken as control condition. The exposure conditions 400C with two levels of CO2 500 ppm and 600 ppm with RH 55±5% and exposure conditions 420C with two levels of CO2 500 ppm and 600 ppm with RH 55±5% were taken as treatments. The exposure period in each condition was 4 hours daily for 5 consecutive days. The antioxidant enzymes (SOD, GPX and CAT) were higher and different at all the exposure conditions compared to control. The plasma cortisol and prolactin levels increased with increase in temperature and CO2 levels and were significantly higher during stressful conditions than control in both breeds. Thyroid hormones (T3 and T4) decreased significantly with elevated temperature and CO2 levels compared to control conditions. The parameters studied in the present investigations were significantly higher in Karan Fries than Tharparkar heifers. The study is an attempt to indicate the effect of predicted change in climate due to increased CO2 levels and environmental temperature (IPCC, 2007) on biochemical and hormonal functions in Tharparkar and Karan Fries heifers.


Keywords: Climatic Chamber, Enzyme, Hormone, Karan Fries, Thyroid.
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How to cite this article:

Priyanka Pandey, O.K. Hooda and Sunil Kumar. 2017. Effect of Elevated Temperature and Increased CO2 Levels on Biochemical and Hormonal Parameters in Tharparkar and Karan Fries HeifersInt.J.Curr.Microbiol.App.Sci. 6(4): 1985-1992. doi: https://doi.org/10.20546/ijcmas.2017.604.236