Ferreira-Silva, José Carlos Conceptus loss in Santa Inês ewes carrying twin pregnancies by natural mating or embryo transfer. [electronic resource] - Theriogenology Jul 2018 - 94-98 p. digital Publication Type: Journal Article ISSN: 1879-3231 Standard No.: 10.1016/j.theriogenology.2018.04.024 doi Subjects--Topical Terms: Abortion, Veterinary--epidemiologyAnimalsBreedingEmbryo Loss--veterinaryEmbryo Transfer--veterinaryFemaleFertilizationHumansLitter SizePregnancyPregnancy RatePregnancy, MultipleSheep