[1]Department of Physiology;
Faculty of Veterinary;
Campus Mare Nostrum;
University of Murcia;
30100 Murcia;
Spain;
[2]Department of Cell Biology and Histology;
Faculty of Medicine;
Campus Mare Nostrum;
University of Murcia;
30100 Murcia;
Spain;
[3]Institute for Biomedical Research of Murcia(IMIB-Arrixaca);
Murcia;
Spain;
[4]Cherkizovo Group;
Lipetsk;
Russia.;
[4]Cherkizovo Group;
Lipetsk;
Russia.;
[1]Department of Physiology;
Faculty of Veterinary;
Campus Mare Nostrum;
University of Murcia;
30100 Murcia;
Spain;
[3]Institute for Biomedical Research of Murcia(IMIB-Arrixaca);
Murcia;
Spain;
Cervix; Intrauterine; Nulliparous; Porcine; Post-cervical insemination;