Concentration of testosterone in blood serum in roosters of the Polbar breed depending on age
Magdalena Gryzińska
Departament of Biochemistry and Toxicology, University of Life Sciences in Lublin Akademicka 13, 20-950 LublinAneta Strachecka
Departament of Biochemistry and Toxicology, University of Life Sciences in Lublin Akademicka 13, 20-950 LublinMagdalena Krauze
Departament of Biochemistry and Toxicology, University of Life Sciences in Lublin Akademicka 13, 20-950 LublinAbstract
The aim of this study was to determine the level of testosterone in roosters of the Polbar breed at 8, 12 and 18 weeks of age. Testosterone concentration in blood serum was determined
in each of 50 roosters, using a device called Mini Vidas ® enzymatic method – fluorescent ELFA (Enzyme Linked Fluorescent Assay). Steroid hormone – testosterone in roosters of the Polbar breed showed upward trends of the hormone in blood serum with the maturation of sexual organs responsible for its production. The increase in testosterone in roosters was rapid in each of the periods. It should be noted that roosters subjected to the experiment did not yet reach sexual maturation. The level of testosterone in the blood serum increased with the age of the roosters. Variability occurs in roosters affected by the substantial range of concentrations of testosterone.
Keywords:
testosterone, roosters, PolbarReferences
Lisowski M., Bednarczyk M., Kłosowska D., Elminowska-Wenda G., Maćkowiak P., Nogowski L. i Nowak K., 2003. Wpływ tamoksyfenu na koncentrację testosteronu we krwi i rozwój
tkanki jądrowej kogutów. Med. Wet. 59 (4), 344–347.
Lofts B., Massa, R. 1980. Male reproduction, [In:] Avian Endocrinology, eds. Nibbio B.J., Epple A., Stenson M. H., Academic Press, London, 418-419.
Opałka M., Kamińska B., Dusza L., 2008. Wpływ fitoestrogenów na oś regulacyjną podwzgórze – przysadka – gonady u samców ssaków. Med. Wet. 64 (2), 142–145.
Rząsa J., 2007. Regulacja rozrodu ptaków, [In:] Biologia rozrodu zwierząt, ed. Krzymowski T., UWM Olsztyn, 568–578.
Stunden C.E., Blum C.K, Cheng K.M., Rajamahendran R., 1998. Plasma testosterone profiles, semen characteristics, and artificial insemination in yearling and adult captive Mallard ducks
(Anas platyrhnchos). Poult. Sci. 77 (6), 882–887.
Sturkie P.D., 1970. Fizjologia ptaków. PWRiL Warszawa.
Turner C.D., Bagnara J.T., 1978. Endokrynologia ogólna. PWRiL Warszawa.
Departament of Biochemistry and Toxicology, University of Life Sciences in Lublin Akademicka 13, 20-950 Lublin
Departament of Biochemistry and Toxicology, University of Life Sciences in Lublin Akademicka 13, 20-950 Lublin
Departament of Biochemistry and Toxicology, University of Life Sciences in Lublin Akademicka 13, 20-950 Lublin
License
From 2022 articles are made available under Creative Commons Attribution 4.0 International licence (CC BY 4.0). Articles published before 2022 are available under Creative Commons Attribution – Non-commercial use – No derivative works 4.0 International licence (CC BY-NC-ND 4.0).
Submission of the paper implies that it has not been published previously, that it is not under consideration for publication elsewhere.
