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The Relationship between blood serum osmolarity and some ionic indices fluctuations in sexual maturity development in Acipenserstellatus
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Ayoub YousefiJourdehi   , Mahmoud Bahmani , Rezvan OllahKazem , Ali Hallajian , Mohammad Pourdehghani |
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Abstract: (5604 Views) |
| In order to evaluating therelationshipbetween osmotic – ionic changes and sexual maturation stages, 30 farmed Acipenserstellatus were selected and were studied for a 1 year period. There was a significant difference in serum osmolarity of males and females at sexual maturation stages in different seasons (P<0.05). Results of ion concentration (sodium, potassium, calcium and magnesium) showed no significance different at early stages (P>0.05), but Ca2+ was decreased significantly (P< 0.05) at the stage IV in different seasons with development of sexual maturation and was minimum in spring (8.85 ± 1.49 mEq/L). Concentration of Mg2+ showed a various fluctuation in different seasons with development of sexual maturation and decreased to its minimum concentration in spring (1.66± 0.26 mEq/L). In males, besides of Ca2+ and Mg2+, Na+ also showed different fluctuation in different seasons and reached to its minimum concentration in spring (132.66 ± 2.56 mEq/L). According to observed results, there was a direct relationship between osmolarity and sodium ion in males and females. Also, there was a significant difference between calcium ion and sexual maturity development. Therefore it can be concluded that sodium has a major role in osmoregulation and also we give emphasis on calcium ion as major sexual indices in A. stellatus. |
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| Keywords: Osmolarity, Ion indices, Sexual maturity, A. stellatus |
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Full-Text [PDF 405 kb]
(2273 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2014/01/21 | Accepted: 2014/01/21 | Published: 2014/01/21
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