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Journal of Applied and Natural Science
An International Journal | Print ISSN: 0974-9411 | Online ISSN: 2231-5209
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Abstract
Journal of Applied and Natural Science 1(1):44-46(2009)
Metabolic changes during hibernating period in Indian common toad, Duttaphrynus melanostictus (Schneider, 1799)
Suman Pratihar* and Jayanta Kumar Kundu
Molecular Biology Laboratory, Department of Zoology, Vidyasagar University, Midnapore -721102 (West Bengal), INDIA
*Corresponding author. E-mail : pratihar_vu@yahoo.co.in
Abstract : The present investigation reports the effect of hibernation on different blood-plasma biochemical parameters viz. plasma protein, plasma glucose and blood urea, thyroid hormone and cholesterol in the Indian Common toad (Duttaphrynus melanostictus). The study indicated that the total plasma protein is decreased significantly in hibernating toads. The decline in thyroid hormone concentration had its behavioral and physiological response that leads to increase and sustain cholesterol level in serum. But plasma glucose was significantly decreased in hibernating toads. During the hibernating phase increased urea concentration in blood acts as cryoprotectant agent, which helps the hibernating animals to sustain in winter. Thus during hibernation these altered metabolic changes appear to be essential for survival.

Keywords : Hibernation, Thyroid hormone, Plasma protein, Urea
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