showed significantly (P < 0.05) reduced percentages
of non-progressive motile sperm and slow sperm, and
significantly increased VCL and VSL values; they also
showed trends (P < 0.1) towards increased progressive
motility and a higher percentage of rapid sperm.
The presence of hens had no significant effect on the
number of spermatozoa per ejaculate or sperm concentration.
Positive correlations were recorded between
VSL and VCL, and between both of these and progressive
motility, and the percentage of rapid sperm.
In addition, both VSL and VCL correlated negatively
with non-progressive motility and the percentage of
slow sperm. These results indicate that rooster sperm
quality, but not quantity, improves in the presence of
hens.