Abstract
The plasma levels of testosterone (T), follicular stimulating hormone (FSH) and luteinizing hormone (LH) were evaluated in Arabian sand gazelles Gazalla subgutrosa marica to reveal their relation with the sexual desire and testicular efficiency. The levels of those hormones fluctuated over the year; the FSH peak (2.212 ml/mlu) was in October (the beginning of reproductive season). LH level peaked in November (0.73 ml/mlu), while the testosterone level started to increase from July and reached its peak during September and October (340.38 and 419. 5 ng/dl, respectively) and decreased rapidly after November. The levels of some semen inorganic constituents were also measured, the average of sodium, potassium and chloride concentrations were 652.75 ± 124 ± 2.3 and 7.2 ± 0.15 ml mol/L, respectively. Fructose level averaged 141 ± 3.5 mg /dl. The use of the reproductive biotechnologies, which aim to preserve the endangered mammals including Gazelles, is restricted by several factors and depends upon the understanding of the relevant reproductive physiology. In conclusion, sexual hormones were strongly influenced by season. The results from this study suggest more investigation on the reproductive physiological research in order to detect the suitable period for semen collection of Arabian Sand Gazelles ( G. subgutturosa marica ) in Saudi Arabia. Keywords: Testosterone, follicular stimulating hormone (FSH), luteinizing hormone (LH), fructose and Gazalla subgutrosa marica African Journal of Biotechnology , Vol 13(52) 4647-4652
Highlights
Seaso onal in nfluenc ce on sexual s hormo ones a and semen plasma para ameters of Arrabian sand gazelles (Ga azalla sub bgutros sa marrica) in n Saud di Arab bia Abdulla ah A
Testosterone, concentrations in the serum was quantified by commercial available RIA kits (Immunotech, France)
The levels of Follicle-stimulating hormone (FSH), luteinizing hormone (LH) were measured by rate specific FSH and LH RIA kits (DRG international, Germany)
Summary
Seaso onal in nfluenc ce on sexual s hormo ones a and semen plasma para ameters of Arrabian sand gazelles (Ga azalla sub bgutros sa marrica) in n Saud di Arab bia Abdulla ah A. Gaza alla subgutrrosa marica to reveal th heir relation with the sexual desiire and testic cular efficien ncy. The leve els of those hormones ffluctuated ov ver the year;; the FSH peak November (0.73 ml/ lu u), while the e testosteron ne level starrted to incre ease from Ju uly and reac ched its pea ak during. The levels of some semen s inorg ganic constituents were e mea asured, the average of sodium, potassium and chloride e concentrattions were 652.75
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