Background: Many terrestrial non-marine birds have functional salt glands. Their salt glands are usually quiescent. However, such glands show remarkable levels of phenotypic plasticity both morphological and physiological as a consequence of drinking saline water. Objective: The current investigation was conducted to reveal in more detail the different functional alterations of the duck`s salt glands subsequent to high salt osmotic stress. Material and methods: The selected avian species were the domestic female (Anas platyrhyncha)and the wild migratory (Anas clypeata ) ducks. Two groups of domestic and one group of wild ducks were considered in the present study , each of which included nine adult ducks. The high salt osmotic stress was induced by replacing drinking tap water of the domestic ducks with 1% sodium chloride solution for two consecutive weeks. The measured parameters were included some electrolytes in both serum and glandular tissue. Also, Na-K-ATPase activity and aldosterone concentrations were considered. Results: The present study elucidated that serum sodium, potassium, chloride and uric acid of the wild migratory ducks were markedly higher than those of both salt-stressed and control ducks. In addition, serum aldosterone concentration of the wild migratory ducks was distinctly higher in comparison with those of the control and the salt-stressed ones. Moreover, salt gland tissue homogenate electrolyte contents followed the same pattern as those of serum electrolyte concentrations. In contrast, the activity of Na-K-ATPase of the salt gland homogenates was higher in the salt-stressed ducks in comparison to both wild migratory and control groups. Conclusion: From the above mentioned results, it was concluded that the peculiar functional status of the salt gland of the experimentally salt-stressed ducks comparing to the control may be presented as an adaptive features to satisfy its special demands to eliminate the remarkable increased levels of sodium chloride load effectively.
El–Gohary, Z. M., El-Sayad, F. I., Hassan, H. A., & Hamoda, A. M. M. (2013). The Functional Alterations of The Avian Salt Gland Subsequent to Osmotic Stress. The Egyptian Journal of Hospital Medicine, 51(1), 346-360. doi: 10.21608/ejhm.2013.15985
MLA
Zeinab M. El–Gohary; Fawkeia I. El-Sayad; Hanaa Ali Hassan; Aya Mohammed Magdy Hamoda. "The Functional Alterations of The Avian Salt Gland Subsequent to Osmotic Stress", The Egyptian Journal of Hospital Medicine, 51, 1, 2013, 346-360. doi: 10.21608/ejhm.2013.15985
HARVARD
El–Gohary, Z. M., El-Sayad, F. I., Hassan, H. A., Hamoda, A. M. M. (2013). 'The Functional Alterations of The Avian Salt Gland Subsequent to Osmotic Stress', The Egyptian Journal of Hospital Medicine, 51(1), pp. 346-360. doi: 10.21608/ejhm.2013.15985
VANCOUVER
El–Gohary, Z. M., El-Sayad, F. I., Hassan, H. A., Hamoda, A. M. M. The Functional Alterations of The Avian Salt Gland Subsequent to Osmotic Stress. The Egyptian Journal of Hospital Medicine, 2013; 51(1): 346-360. doi: 10.21608/ejhm.2013.15985
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