Boars fed diets low in Se also have structural
abnormalities in the spermatozoal mitochondria, lower
ATP concentrations, and lower glutathione peroxidase
(GSH-Px) activities (Marin-Guzman et al., 1997, 2000).
Spermatid formation involves a process of cell division
and differentiation. Spermatocytes are nurtured by
the Sertoli cells present in the wall of the seminiferous
tubules. Spermatogenesis begins with the mitotic division
of spermatogonia, producing a set of dormant spermatogonium and another set of primary spermatocytes