Even so, high motility results were registered for
all three extenders, sperm membrane integrity was
unable to maintain such high values, registering a
decrease compared to sperm motility (figure 2). It
seems that cold shock may affect more the
structure of the membranes (mainly the acrosomal
membrane), most of these injuries having no
immediately affect on sperm motility.
To evaluate only the motility of boar spermatozoa,
may lead to unspecific results, other sperm
characteristics having high impact on the fertility,
should be considered, as those could be affected
rough by temperature stress factors.
In any case, in further trials it would be interesting
to evaluate the behavior of sperm cells extended in
Ah Plus+20% EY during low temperatures (125°C)
storage time
periods.