DUI is a useful tool for improving

DUI is a useful tool for improving the
efficiency of the use of ‘weaker’ spermatozoa, such as
those that have been frozen–thawed or sex-sorted,
although fertility results with the use of ‘weaker’
spermatozoa are also influenced by AIOV, not only by
the site of semen deposition. Also, it would be of great
interest for the wide and effective use of semen from
genetically superior boars or in sanitary contingencies,
when the number of doses to be used must be drastically
decreased