El contenido relativo de la proteína Niemann-Pick C2 (NPC2) en el plasma seminal, pero no el de la espermadhesina AQN-1, está relacionado con la criotolerancia del esperma del verraco
Variation between and within boar ejaculates in their ability to withstand freezing-thawing is a limitation for sperm cryopreservation. Consequently, the search for freezability markers is imperative not only in sperm but also in seminal plasma (SP).