Testicular tumours in dogs are of Sertoli cell, Leydig cell or germinal origin and mixed
tumours are also frequently observed. The cellular components of mixed tumours are …

Studies of chromosome and genome biology often focus on condensed chromatin in the
form of chromosomes and neglect the non-dividing cells. Even when interphase nuclei are …

Sperm pathology is presented as the discipline of characterizing structural and functional
deficiencies in abnormal spermatozoa. This concept complements that of sperm morphology …

Contents Sperm cryopreservation facilitates the storage and transport of germplasm for its
use in artificial insemination (AI) and other advanced reproductive technologies. The …

During the haploid phase of mammalian spermatogenesis, nucleosomal chromatin is
ultimately repackaged by small, highly basic protamines to generate an extremely compact …

Like the Journal of Andrology, computer assisted sperm analysis (CASA) systems did not
arise de novo. Although both are celebrating 25th anniversaries, the Journal evolved over …

In vitro semen analyses have been used for more than half a century to estimate the
fertilizing potential of a semen sample. Unfortunately, none of the assays developed provide …

Within the sperm nucleus the paternal genome remains functionally inert and protected
following protamination. This is marked by a structural morphogenesis that is heralded by a …

After natural or artificial insemination, the spermatozoon starts a journey from the site of
deposition to the place of fertilization. However, only a small subset of the spermatozoa …

This paper highlights selected laboratory analyses that are currently used to evaluate sperm,
and describes why results from these assays do not consistently correlate with sperm fertility …