This illustration depicts the progressive development of the acrosomic system and morphology of bovine spermatids during spermiogenesis. Although spermiogenesis is a progressive process, fourteen distinct steps are identified, beginning with newly-formed step 1 spermatids and ending with elongated step 14 spermatids awaiting spermiation. A more thorough description of the changes in spermatid morphology and the use of acrosomal development to identify stages of the cycle of the seminiferous epithelium may be found in the publication of Berndtson and Desjardins (Amer. J. Anat. 140:167-180. 1974).

Spemiogenesis of the bull as seen with periodic acid-Schiff staining

Credit: William Berndtson

Digital Credit: University of New Hampshire

Publisher: None

Rights: Image Gallery user terms

Description: This illustration depicts the progressive development of the acrosomic system and morphology of bovine spermatids during spermiogenesis. Although spermiogenesis is a progressive process, fourteen distinct steps are identified, beginning with newly-formed step 1 spermatids and ending with elongated step 14 spermatids awaiting spermiation. A more thorough description of the changes in spermatid morphology and the use of acrosomal development to identify stages of the cycle of the seminiferous epithelium may be found in the publication of Berndtson and Desjardins (Amer. J. Anat. 140:167-180. 1974).

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Spemiogenesis of the bull as seen with periodic acid-Schiff staining

Credit: William Berndtson

Digital Credit: University of New Hampshire

Publisher: None