Abstract
Diurnal dynamics of the levels of thyroid and sex steroid hormones have been studied in the blood of rainbow trout yearlings. Sexual distinctions in the diurnal dynamics of these hormones and rates of the relation of testosterone to estradiol-17β have been revealed. An inverse relationship between the maximum and minimum levels of thyroid hormones in females and males has been found.
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Notes
Hereinafter: before the parentheses is the average value of the indicator and its error; in parentheses is the min–max of the indicator.
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ACKNOWLEDGMENTS
We are grateful to the staff of the Coastal Department of the Russian–Vietnamese Tropical Research and Technological Center for their help in material sampling and to D.S. Pavlov and M.I. Shatunovsky (Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences) for valuable comments on the manuscript.
Funding
This work was supported by the Program for Basic Research of the Presidium of the Russian Academy of Sciences Biodiversity of Natural Systems and Biological Resources of Russia and by the Russian–Vietnamese Tropical Research and Technological Center (program Ecolan 3.2).
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Translated by T. Kuznetsova
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Ganzha, E.V., Pavlov, E.D. Diurnal Dynamics of Thyroid and Sex Steroid Hormones in the Blood of Rainbow Trout Juveniles. Inland Water Biol 12, 333–336 (2019). https://doi.org/10.1134/S1995082919030064
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DOI: https://doi.org/10.1134/S1995082919030064