Effects of Sex Steroids (Testosterone and Estradiol) on Serum Calcium and Phosphate Levels of a Freshwater Male Teleost, Heteropneustes fossilis
Journal Title: International Journal of Zoological Investigations - Year 2017, Vol 3, Issue 2
Abstract
Adult male specimens of Heteropneustes foissilis were injected daily intraperitoneally with vehicle (peanut oil) or testosterone (10μg/g body wt) or estradiol (10μg/g body wt) for 10 days. Fish were sacrificed on day 1, 3, 5 and 10 after initiation of the experiment and serum calcium and inorganic phosphate levels were analyzed. The serum calcium level of estradiol treated fish exhibits no change on day 1. The level increases progressively from day 3 to day 5. However, on day 10 the level slightly decreases as compared to day 5. Testosterone treatment caused no significant change in serum calcium level throughout the experiment. The serum phosphate level shows a significant increase following estradiol treatment from day 1 to day 5. On day 10 the level decreases slightly. Testosterone treated fish exhibits no change in serum phosphate level on day 1 and 3. On day 5 and 10 the level significantly increases.
Authors and Affiliations
Ajai K Srivastav
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