A comparison of the properties of the two portion split ejaculate in normal and in oligospermic subjects.

The whole ejaculate and a two-portion split ejaculate from each of fifteen normal and seventeen oligospermic men were analysed from sperm density, total sperm population, sperm motility and morphology and seminal plasma fructose. These parameters did not differ significantly between the two fractions. In either group of subjects, although a higher motility was noted in the "normal" samples when compared with the corresponding "Oligo-spermic" samples, the usefulness of the split ejaculate for the purposes of artificial insemination is questioned.