title: Retention of unfertilized ova in uterine tubes of mares.
mesh_terms: D000818:Animals; D004971:Estrus; D005260:Female; D005306:Fertilization; D006736:Horses / Q000502:physiology*; D007315:Insemination, Artificial; D010060:Ovulation; D010063:Ovum / Q000166:cytology / Q000502:physiology*; D011247:Pregnancy; D013997:Time Factors; D014599:Uterus / Q000502:physiology*