Assessment of Reproductive Efficiency of The Arabian Sand Gazelle Males (Gazella subgutturosa marica ) and Semen Cryopreservation

There are many endangered Mammalian species which lost their original habitat and exposed to disturbances in the regional biodiversity. One of the assisted reproductive techniques (ART), presently employed to aid in the preservation of reproduction of the endangered species, is the cryopreservation of gametes including semen freezing. Assessment of the reproductive efficiency of male mammals is considered one of the essential factors to accomplish the process of reproduction and species preservation. This assessment is of greater importance for the endangered animals such as gazelles. The Arabian sand gazelle, (Gazella subgutturosa manics), is one of the endangered animals in Saudi Arabia , and the assessment of its reproductive efficiency and its semen characters have not been deeply investigated, therefore the present study focused on these subjects .The level of the blood plasma Reproductive hormones (T, FSH, LH) were also measured around the year to evaluate the male reproductive efficiency .The proper methods of semen dilution and freezing were also investigated