title: Relationship between early pregnancy site in consecutive gestations in mares.
abstract: The records of 200 pairs of consecutive pregnancies in mares showed that in 82 per cent of cases the second pregnancy was initially established in the opposite uterine horn to that of the first, irrespective of the parturition to conception interval. This relationship also occurred when the first pregnancy ended in abortion after 140 days but not if it terminated before this time.
mesh_terms: D000818:Animals; D005260:Female; D005306:Fertilization; D006736:Horses / Q000502:physiology*; D007743:Labor, Obstetric; D011247:Pregnancy; D011270:Pregnancy, Animal; D013997:Time Factors; D014599:Uterus / Q000033:anatomy & histology*