The time of entry of ova into the uterus of the ewe.
D000818:Animals; D002465:Cell Movement; D005187:Fallopian Tubes; D005260:Female; D010060:Ovulation; D010063:Ovum / Q000254:growth & development / Q000502:physiology*; D012756:Sheep / Q000502:physiology*; D013997:Time Factors; D014599:Uterus / Q000502:physiology*