title: [Deep freezing of boar semen. 5. Laboratory- and insemination trials for improving the "Huelsenberg" technic].
mesh_terms: D000818:Animals; D005260:Female; D005615:Freezing; D007315:Insemination, Artificial / Q000662:veterinary; D008297:Male; D011247:Pregnancy; D011270:Pregnancy, Animal; D011309:Preservation, Biological / Q000379:methods*; D012661:Semen; D013552:Swine
vernacular_title: Zur Tiefgefrierung von Ebersperma. 5. Labor- und Besamungsversuche zur Verbesserung des "Hülsenbergverfahrens"