title: Artificial insemination of pony mares with semen frozen and stored in liquid nitrogen.
mesh_terms: D000818:Animals; D002021:Buffers; D002364:Caseins; D004971:Estrus; D005260:Female; D005298:Fertility; D005615:Freezing; D005865:Gestational Age; D005990:Glycerol; D006736:Horses; D007315:Insemination, Artificial / Q000662:veterinary*; D008297:Male; D009068:Movement; D009584:Nitrogen; D011247:Pregnancy; D011309:Preservation, Biological; D012661:Semen; D013045:Species Specificity; D013048:Specimen Handling
chemical_list: D002021:Buffers; D002364:Caseins; D009584:Nitrogen; D005990:Glycerol