Monitoring the concentration of 17-β estradiol and progesterone with relative to puberty in growing Shami heifers
published by Damascus University
in 2014
in Animal Production
and research's language is
العربية
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Abstract in English
Twelve growing Shami heifers available in Dier-Al-Hajar Station for
improving Shami Cattle weighing 115±3 kg and 178±4 days old were used to
determine the weekly hormonal concentrations of progesterone (P4) and
estradiol 17-β (E2) during the pre- and puberty stages (6-14 mos). Blood
samples were collected weekly from the Jugular vein using vacutainer tubes
supported with K3EDTA.
References used
Abdalla, K. F., S. M. Abdel-Aziz, A. F. El-Fakahany, A. S. El-Hamshary and L. M. Afifi. 1994. Effect of praziquantel on sex hormone levels in routine Schistosomiasis mansoni. J. Egy. Soc. Parasitol. 24: 627-632
Adams, G. P., R. L. Matteri, J. P. Kastelic, J. C. KO and O. J. Ginther. 1992. Association between surges of follicle-stimulating hormone and the emergence of follicular waves in heifers. J. Reprod. Fertil. 94: 177-188
Adashi, E. Y., C. E. Resnick, A. J. D'Ercole, M. E. Svoboda and J. J.Van Wyk. 1985. Insulin-like growth factors as intraovarian regulators of granulosa cell growth and function. Endocrinol. Rev. 6: 400-409