Browsing Philosophiae Doctor - PhD (Medical BioScience) by Author "van der Horst, Gerhard"
Now showing items 1-4 of 4
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Apoptotic markers in ejaculated human spermatozoa
Brooks, Nicole Lisa (University of the Western Cape, 2005)The role of male germ cell death in spermatogenesis is an important one as it removes dysfunctional or genetically damaged germ cells and is necessary to maintain an optimal germ cell to Sertoli cell ratio. The formation ... -
Aspects of the reproduction of male and female African penguins (Spheniscus demersus) with special reference to sperm biology and cryopreservation
Mafunda, Patrick Siyambulela (University of the Western Cape, 2018)In the marine environment, penguins have been described as curators and serve a critical role in ecological balance. The African penguin (Spheniscus demersus) has undergone a rapid population decline, mainly due to ... -
Semen characteristics of free-ranging African elephants (Loxodonta africana) and Southern white rhinoceros (Ceratotherium simum simum) using Computer-aided sperm analysis, Electron microscopy and Genomics as diagnostic tools
Luther, Ilse (University of the Western Cape, 2016)The survival of free-ranging (in situ) African elephant and Southern white rhinoceros populations are currently being challenged on a daily basis in Africa. Reproductive health is considered a vital component of species ... -
Sperm mitochondria: species specificity and relationships to sperm morphometric features and sperm function in selected mammalian species
Maree, Liana (University of the Western Cape, 2011)Numerous studies on mammalian spermatozoa have reported large variations in the dimensions of the main sperm structural components, namely the head, midpiece and flagellum. These variations in sperm architecture are believed ...